Top 12 Best Subaru WRX Exhaust That Boost Power Fast
Many Subaru WRX owners want to improve their car’s performance and sound without major modifications. Finding the right exhaust system can be challenging, especially with so many options available. The best Subaru WRX exhaust offers a balance of enhanced power, better airflow, and a satisfying engine note.
This type of upgrade is ideal for drivers who want a noticeable but refined improvement, whether for daily driving or spirited weekend rides. This review will cover key features to look for, durability, installation tips, and how different exhausts affect your WRX’s performance and sound.
By the end, you’ll have a clearer idea of which exhaust suits your needs best.
Unleashing Performance and Sound: Top Upgrades for Your Subaru WRX Exhaust System
| Image | Product | Price |
|---|---|---|
Top Pick 1 ![]() | BORLA 140595 Cat-Back Perf. Exhaust Sys. for 2015-2021 Subaru Impreza | Check Price Now |
Top Pick 2 ![]() | Invidia HS15STIGM4ST Exhaust System (Back Exhaust2015+ Subaru WRX/Sti Gemini/R400 Single | Check Price Now |
Top Pick 3 ![]() | TOMEI Full Titanium Muffler Kit Compatible with Subaru WRX 2022+ | Check Price Now |
1. BORLA 140595 Cat-Back Perf. Exhaust Sys. for 2015-2021 Subaru Impreza

For Subaru Impreza owners seeking improved sound and performance, the BORLA 140595 Cat-Back Performance Exhaust System offers an excellent upgrade. Designed specifically for 2015-2021 models, it combines quality materials with precise engineering to enhance your vehicle’s exhaust flow.
Experience a noticeable boost in exhaust tone without drone, thanks to Borla’s patented technology. This exhaust system balances aggressive sound with refined everyday drivability, making it suitable for various driving conditions.
The BORLA 140595 Cat-Back Exhaust is made from premium T-304 stainless steel, ensuring long-lasting resistance to corrosion and wear. Its all-welded construction guarantees durability and a secure fit, giving you peace of mind when hitting the road.
Installation is straightforward with the bolt-on design, reducing your garage time significantly.
Performance-wise, it improves exhaust flow which can enhance throttle response. The sound note deepens to offer a sporty roar without producing excessive cabin noise. This system fits perfectly for those who want an upgrade over the stock exhaust with reliable craftsmanship from a reputable brand.
This system fits perfectly for those who want an upgrade over the stock exhaust with reliable craftsmanship from a reputable brand.
Suitable for drivers looking to add character and efficiency to their Subaru Impreza, the BORLA 140595 offers a sound that excites without overwhelming daily drives. Its American manufacturing upholds strict quality controls, supporting long-term satisfaction. Compared to many competitors, it holds excellent value in sound quality, construction, and ease of installation.
Pros
- Durable T-304 stainless steel construction resists rust and corrosion.
- Easy bolt-on installation with all-welded design for a precise fit.
- Balanced exhaust tone with no drone during highway cruising.
Cons
- The premium build and design come with a heavier weight compared to some competitors.
Offering a solid combination of durability, sound quality, and fitment, the BORLA 140595 Cat-Back Exhaust stands out among Subaru WRX upgrades. Its thoughtful design enhances your driving experience without compromising comfort.
Below is a detailed specification table for quick reference.
| Specification | Detail |
|---|---|
| Brand Name | BORLA |
| Manufacturer Part Number | 140595 |
| Material | T-304 Stainless Steel |
| Installation Type | Bolt On |
| Construction | All Welded |
| Compatibility | 2015-2021 Subaru Impreza |
| Included Components | Catback Exhaust System |
| Item Weight | 48 Pounds |
| Made In | USA |
In my experience, the BORLA 140595 delivers a refined yet sporty sound that many Subaru drivers will appreciate. It strikes a good balance between performance and noise control, making it ideal for daily use and spirited drives. Compared with other exhausts in this segment, it offers superior build quality that justifies its appeal.
Whether upgrading for sound or longevity, this exhaust system remains a valuable addition to your Subaru Impreza.
2. Invidia HS15STIGM4ST Exhaust System (Back Exhaust2015+ Subaru WRX/Sti Gemini/R400 Single

The Invidia HS15STIGM4ST Exhaust System is designed to elevate your 2015+ Subaru WRX/Sti’s performance and sound profile. Crafted for those seeking both power gains and an aggressive exhaust note, it merges engineering precision with high-quality materials.
This exhaust setup transforms your vehicle’s output by freeing exhaust flow and boosting horsepower smoothly. Its titanium quad-tip design adds a striking visual upgrade, pairing innovation with durability.
Engineered as a cat-back system, the Invidia HS15STIGM4ST replaces the stock exhaust to reduce backpressure effectively. It incorporates a large 4-inch stainless-steel bell mount, which enhances exhaust scavenging for noticeable power improvements.
On the dyno, users observe clear horsepower gains compared to the factory system.
Fabricated mainly from lightweight titanium, this exhaust reduces system weight significantly. The quad titanium tips deliver a sharp yet refined exhaust tone that balances aggressiveness without excess drone.
Its durable construction resists corrosion, making it a reliable upgrade over time.
Installation is straightforward with included automotive exhaust gaskets for a secure, leak-free fit. This system is tailored for Subaru WRX and STi models from 2015 onward, perfect for drivers aiming to refine both driving dynamics and vehicle sound. Its value lies in combining performance enhancement with stylish appearance and lasting build quality.
Its value lies in combining performance enhancement with stylish appearance and lasting build quality.
Pros
- Significant horsepower gains through improved exhaust flow
- Lightweight titanium construction reduces overall weight
- Distinctive quad titanium tip design enhances visual appeal
Cons
- Premium price point compared to standard exhaust systems
Overall, the Invidia HS15STIGM4ST Exhaust System stands out as a high-quality upgrade that brings substantial power and style to the Subaru WRX/STi platform. Its design focuses on reliable performance gains and a balanced exhaust note. Compared to other options in the market, this system strikes a solid balance between durability, weight savings, and sound quality.
Compared to other options in the market, this system strikes a solid balance between durability, weight savings, and sound quality.
| Brand Name | Invidia |
|---|---|
| Manufacturer Part Number | HS15STIGM4ST |
| OEM Equivalent Part Number | HS15STIGM4ST |
| Model Number | HS15STIGM4ST |
| Item Weight | 49.5 Pounds |
| Included Components | Automotive Exhaust Gaskets |
| Item Type Name | Back Exhaust (Back Exhaust) 2015+ Subaru WRX / STi Gemini/R400 Single Layer Quad Titanium Tip Cat |
In my opinion, this exhaust system offers a refined balance of performance and aesthetics that appeal to serious Subaru drivers. Its clear horsepower gains are matched by a deep, sporty tone without being overly intrusive for daily use.
While it commands a higher investment, the durable construction and distinctive design add long-term value. For WRX/STi owners focused on genuine enhancement rather than just sound, this system is a solid choice.
3. TOMEI Full Titanium Muffler Kit Compatible with Subaru WRX 2022+

Upgrade your Subaru WRX 2022+ with a premium exhaust solution designed for both style and performance. The TOMEI Full Titanium Muffler Kit combines lightweight engineering with superior sound quality, enhancing your driving experience without adding unnecessary weight.
Precision-crafted for the FA24DIT engine, this exhaust promises a perfect fit and noticeable improvements in throttle response. Drivers can enjoy a sportier exhaust note that complements the WRX’s aggressive character.
The TOMEI Full Titanium Muffler Kit offers a full titanium construction that outperforms standard exhaust materials. This lightweight build reduces overall vehicle weight, making it ideal for those seeking enhanced speed and handling.
Its design specifically matches the WRX 2022+ model with the FA24DIT engine, ensuring seamless compatibility and straightforward installation.
Featuring a type-R single exit layout, the muffler adds a sleek, modern look to the rear of the vehicle while optimizing exhaust flow. This configuration helps improve engine response, giving the WRX a more aggressive tone and better performance. The kit includes all necessary hardware, making installation hassle-free and straightforward for both professional installers and knowledgeable owners.
The kit includes all necessary hardware, making installation hassle-free and straightforward for both professional installers and knowledgeable owners.
Manufactured by TOMEI, a trusted name in performance exhaust systems, the kit guarantees quality and durability. It provides a robust sound that enhances driving enjoyment without being overwhelming. Ideal for drivers looking to improve their WRX’s exhaust system with a stylish, lightweight, and reliable upgrade.
Ideal for drivers looking to improve their WRX’s exhaust system with a stylish, lightweight, and reliable upgrade.
Pros
- Constructed from high-grade titanium for durability and weight reduction
- Type-R single exit design enhances exhaust flow and visual appeal
- Direct fit application with all necessary hardware included
Cons
- Premium price point may not suit all budgets
The TOMEI Full Titanium Muffler Kit is a high-quality upgrade that significantly enhances the Subaru WRX 2022+ experience. It combines lightweight materials with a well-designed exhaust flow pattern to boost both sound and performance. This kit stands out when compared to many stock or basic aftermarket options due to its precise fitment and material excellence.
This kit stands out when compared to many stock or basic aftermarket options due to its precise fitment and material excellence.
| Specification | Details |
|---|---|
| Compatibility | Subaru WRX 2022+ (FA24DIT Engine) |
| Material | Full Titanium |
| Design | Type-R Single Exit |
| Inlet Connection Size | 3.15 Inches |
| Outlet Connection Size | 3.51 Inches |
| Installation | Direct Fit with Included Hardware |
Personally, this muffler kit impresses with its blend of lightweight construction and aggressive sound enhancement. The titanium material ensures that it remains durable even under demanding conditions. While it carries a higher price tag, the improvements in handling and engine response justify the investment for serious WRX owners.
It provides a clean, polished look that gives the rear of the car a distinctive and refined finish compared to many aftermarket mufflers.
4. Tomei Full Titanium Muffler Kit Compatible with 2008-14 WRX EJ,

The Tomei Full Titanium Muffler Kit redefines performance for the Subaru WRX and STI models. Its lightweight design combined with durable materials offers a remarkable upgrade from standard exhaust setups.
Engineered for serious reductions in weight, this kit is tailored for drivers seeking enhanced handling and sound without compromise. Its premium titanium build promises longevity and unique style that stands out on the road.
Specifically compatible with 2008-14 WRX EJ sedans, 2011-21 STI EJ sedans, and 2015-21 WRX FA20DIT models, the muffler kit fits seamlessly onto these vehicles. Weighing approximately 16 pounds, it achieves over 35 pounds of weight reduction compared to factory exhausts. This substantial shedding of mass contributes to improved vehicle agility and acceleration.
This substantial shedding of mass contributes to improved vehicle agility and acceleration.
Crafted entirely from high-quality titanium, the kit balances durability and weight, meeting the needs of motorsport applications as well as street driving. The material resists corrosion and withstands high temperatures, enhancing longevity under demanding conditions. Installation is straightforward with all necessary hardware included, allowing swift bolt-on mounting.
The sound profile provides a refined yet aggressive exhaust note that elevates the driving experience without excessive drone. Ideal for drivers aiming to enhance both performance and aesthetics, it offers a significant upgrade for the WRX/STI lineup. Its premium construction supports long-term use, making it a worthwhile investment for those prioritizing quality and function.
Its premium construction supports long-term use, making it a worthwhile investment for those prioritizing quality and function.
Pros
- Massive weight savings of over 35 pounds compared to stock systems
- Constructed entirely from lightweight and durable titanium
- Includes all hardware for easy bolt-on installation
Cons
- Premium material and design come with a higher upfront cost
The Tomei Full Titanium Muffler Kit stands out as an excellent upgrade for Subaru WRX and STI owners focused on reducing vehicle weight while enhancing sound and durability. It offers a blend of high-quality materials and performance gains that are seldom matched in the aftermarket exhaust market.
Compared to other systems made from stainless steel or mixed metals, this titanium kit delivers superior corrosion resistance and a lighter overall package. For those prioritizing performance modifications, this muffler kit is a reliable choice that improves both the driving feel and vehicle dynamics.
| Specification | Details |
|---|---|
| Brand Name | Tomei |
| Manufacturer Part Number | TB6090-SB02C |
| UPC | 689750181605 |
| Compatibility | 2008-14 WRX EJ sedan, 2011-21 STI EJ sedan, 2015-21 WRX FA20DIT |
| Weight | Approximately 16 lbs |
| Material | Full titanium construction |
| Installation | Includes all hardware for bolt-on setup |
In my experience with performance exhausts, the titanium construction truly sets this muffler apart. Its combination of lightness and toughness makes a noticeable difference during spirited driving. The sound strikes a balanced tone, enhancing engagement without becoming intrusive.
The sound strikes a balanced tone, enhancing engagement without becoming intrusive. This kit is a well-rounded upgrade for Subaru drivers seeking lasting improvements.
5. Invidia (HS11STIGTT) N1 Twin Outlet Single Layer Cat-Back Exhaust System

Enhance your Subaru WRX/STI’s performance and sound with the Invidia N1 Twin Outlet Single Layer Cat-Back Exhaust System. Designed specifically for 2008 and later models, this exhaust improves both power delivery and aggressive exhaust tone. Its precise engineering makes it a popular choice for those seeking a balance between style and function.
Its precise engineering makes it a popular choice for those seeking a balance between style and function.
Crafted with durable materials and expert workmanship, the Invidia cat-back exhaust system stands out for its robust build and impressive piping diameter. It offers a deep, sporty sound without being overbearing, making every drive more exhilarating.
Installation is straightforward, ensuring compatibility and a firm fit for your Subaru WRX or STI. Ideal for drivers wanting to upgrade their stock exhaust with a quality, well-designed system that enhances throttle response and performance.
The Invidia N1 Twin Outlet exhaust system features a piping diameter of 76 millimeters, facilitating smoother exhaust flow and reducing backpressure effectively. This diameter improves engine breathing and can contribute to modest horsepower gains.
Constructed with a single-layer design and premium-grade materials, this exhaust provides lasting durability and resistance to corrosion. The 101-millimeter titanium tips not only look stylish but also offer strength without adding excessive weight. Weighing just 47 pounds, it is lighter than most stock exhaust systems, which can aid in slight vehicle weight reduction and improve handling responsiveness.
The installation process is user-friendly, typically requiring standard hand tools and no major modifications, which is excellent for those performing DIY upgrades. It fits seamlessly on Subaru WRX and STI models from 2008 onward, ensuring a snug and secure mount.
This cat-back system is well-suited for drivers focused on upgrading exhaust tone and performance while maintaining everyday drivability and sound compliance.
Pros
- Wide 76mm piping enhances exhaust flow and power output
- Lightweight 47-pound construction improves vehicle dynamics
- Stylish 101mm titanium tips combine aesthetics with durability
Cons
- Single-layer design may offer less heat insulation compared to dual-layer options
For Subaru WRX and STI owners aiming to upgrade their vehicle’s exhaust sound and performance, the Invidia N1 Twin Outlet system delivers a strong value proposition. It blends functional design, quality materials, and unmistakable sporty appeal.
When compared to other aftermarket exhausts, it strikes a good balance without overwhelming noise levels or installation complexity.
| Specification | Details |
|---|---|
| Compatible Models | Subaru WRX/STI 2008-Up |
| Piping Diameter | 76 millimeters |
| Tip Size | 101 millimeters |
| Weight | 47 pounds |
| Material | Single Layer Construction, Titanium Tips |
| Exhaust Type | Cat-Back |
In my opinion, the Invidia N1 exhaust system offers a notable sound upgrade without compromising everyday usability. It balances aggressive exhaust notes with manageable volume, suited for daily driving. The quality construction reassures long-term durability, and the design complements Subaru’s sporty character well.
The quality construction reassures long-term durability, and the design complements Subaru’s sporty character well. For those comparing aftermarket exhausts, this system provides a reliable performance boost while maintaining a refined appearance.
6. PHILTOP Cat-Back System, Stainless Steel Cat Back Exhaust System Fit

Enhance your 2015-2017 Subaru WRX or WRX STI with the PHILTOP Cat-Back System, a meticulously engineered exhaust upgrade designed for those seeking reliable performance and a refined sound profile. Crafted to fit seamlessly, this exhaust system promises to elevate both driving experience and vehicle aesthetics.
Durable construction combined with thoughtful design makes this system a standout option, providing noticeable improvements that don’t compromise factory fitment or vehicle integrity. It’s ideal for drivers aiming to balance sound, power, and longevity without extensive modifications.
The PHILTOP Cat-Back System is tailored specifically for 2015-2017 Subaru WRX and WRX STI models, ensuring perfect compatibility and ease of installation. Made from T-304 stainless steel, it offers superior resistance to corrosion and high-temperature environments, securing its place as a lasting upgrade for daily driving or spirited runs.
Its construction features computerized mandrel-bends that maintain optimal exhaust flow, while TIG welded CNC flanges add strength and durability. This precise manufacturing supports a performance boost by lowering exhaust backpressure, allowing the engine to breathe more freely.
The system also incorporates larger pipes and tuned resonators to reduce unwanted noise. This thoughtful design balances deep, aggressive tones without becoming overly loud, making it suitable for a variety of driving conditions.
Installation is straightforward with direct bolt-on compatibility, requiring no drilling or modifications. All necessary gaskets and hardware are included, enabling a hassle-free upgrade process for those with basic mechanical skills or professional installation.
Compared to many aftermarket alternatives, the PHILTOP Cat-Back System blends quality material, well-executed engineering, and ease of use, providing excellent value for anyone who wants to improve sound and performance while preserving vehicle longevity.
Pros
- Durable T-304 stainless steel construction for longevity
- Direct bolt-on installation with included hardware and gaskets
- Reduces exhaust backpressure for improved engine efficiency
Cons
- Limited fitment restricted to 2015-2017 Subaru WRX and WRX STI
The PHILTOP Cat-Back System offers a robust and reliable upgrade for Subaru WRX owners focused on quality and performance. It strikes an effective balance between sound enhancement and durability without sacrificing factory fitment.
| Specification | Details |
|---|---|
| Manufacturer | PHILTOP |
| Brand | PHILTOP |
| Model | Cat-Back Systems |
| Item Weight | 26.2 pounds |
| Product Dimensions | 45.67 x 9.06 x 17.32 inches |
| Item Model Number | Cat-Back Systems |
| Exterior Finish | Polished |
| Manufacturer Part Number | 8927ESK062FUS |
| OEM Part Number | Cat-Back Systems |
From my perspective, this exhaust kit offers an excellent blend of quality and performance enhancements tailored for WRX models. The use of stainless steel and well-executed bends ensures durability, while the sound profile remains refined yet assertive.
7. DNA MOTORING CBE-WRX15-D Stainless Steel Cat Back Exhaust System [Compatible

Upgrade your Subaru WRX or STI Sedan with an exhaust system designed to improve both performance and sound. The DNA MOTORING CBE-WRX15-D Stainless Steel Cat Back Exhaust System provides a powerful yet refined solution that enhances your vehicle’s driving experience. Crafted for fit and function, it compliments your ride effortlessly.
Crafted for fit and function, it compliments your ride effortlessly.
Engineered to boost horsepower while delivering a deep and aggressive tone, this catback exhaust transforms how your car sounds and feels on the road. It’s a perfect combination of durability and style for those seeking noticeable gains and reliability.
Designed specifically for 2015-2017 Subaru WRX & STI Sedans, this exhaust system offers a precise fit without the hassle of modifications. Built with premium T-304 stainless steel, it withstands corrosion and mechanical stress for long-lasting use.
Mandrel-bent tubing ensures smooth exhaust flow, minimizing restriction and maximizing horsepower gains.
Performance-wise, dyno tests show an increase of 15 to 25 horsepower along with improved low-end torque. The exhaust note is aggressive yet controlled, thanks to the tuned resonators and low-restriction mufflers.
Installation is straightforward with included hardware and gaskets, making it accessible for DIY enthusiasts or professional shops. This system strikes a balance between enhancing engine output and maintaining street-legal sound quality.
Those looking to boost performance and sound clarity without spending excessively will find this an excellent choice.
Pros
- High-quality T-304 stainless steel construction for durability
- Dyno-proven horsepower and torque increase
- Removable silencer enables adjustable sound output
Cons
- Sound may be too aggressive for some daily drivers
The DNA MOTORING CBE-WRX15-D Cat Back Exhaust System blends strong performance, solid build quality, and an enhanced exhaust note into one well-engineered package. It stands out as a cost-effective upgrade tailored for WRX/STI owners seeking improved horsepower and an aggressive growl without sacrificing reliability. Compared to other catbacks, it offers a noticeable tone enhancement while maintaining good exhaust flow characteristics.
| Specification | Details |
|---|---|
| Compatibility | 2015-2017 Subaru WRX & STI Sedan |
| Material | T-304 Stainless Steel |
| Muffler Tip Diameter | 4” (Od) with removable silencer |
| Piping Diameter | 2.5” (Od) |
| Construction | Computerized Mandrel-Bends, TIG welded CNC flange |
| Horsepower Gain | 15 to 25 HP |
| Includes | Catback exhaust, hardware, and gaskets |
In my view, the system offers a strong balance of sound and performance that fits many Subaru WRX drivers looking to make a meaningful upgrade. It doesn’t stray into overly loud territory but delivers enough sonic presence to satisfy those craving a spirited exhaust note. Its durable materials and straightforward installation make it a reliable choice for daily drivers and weekend cruisers alike.
Compared to some pricier options, it holds its own without compromising quality or power delivery.
8. AWE Tuning Track Edition Cat-Back Exhaust for 2011-2018 Subaru WRX/STI

Enhance your Subaru WRX/STI’s performance and sound with the AWE Tuning Track Edition Cat-Back Exhaust. Designed specifically for 2011-2018 models, this exhaust system delivers a bold and aggressive tone without compromising daily drivability. Experience a refined yet sporty auditory upgrade that complements your driving style perfectly.
Experience a refined yet sporty auditory upgrade that complements your driving style perfectly.
Crafted for those seeking a high-quality exhaust upgrade, the Track Edition boosts horsepower while reducing weight, thanks to its premium construction. Its unique valve design allows you to switch between a quiet and spirited exhaust note, offering versatility on any drive. The system fits seamlessly and is a direct replacement for the factory exhaust, making installation straightforward for most users.
The AWE Tuning Track Edition Cat-Back Exhaust features an advanced valve-actuated system tailored to enhance your vehicle’s sound profile. It produces a deep, aggressive tone during spirited driving while remaining subtle when valves close.
Performance gains are evident as this exhaust reduces back pressure, resulting in improved throttle response and increased horsepower. Its lightweight design reduces the overall system weight compared to the stock setup, contributing to better handling and efficiency. The installation process is user-friendly since it bolts directly onto existing mounts without requiring modifications.
Ideal for drivers looking to add a sportier exhaust note and performance boost, this exhaust balances sound, durability, and engineering. Whether on the street or track, the valve system allows adaptability to different driving environments.
Pros
- Valve system allows adjustable exhaust tone for different driving moods
- Made from corrosion-resistant stainless steel for long-lasting durability
- Easy direct-fit installation with no permanent modifications needed
Cons
- Premium build and features come with a higher weight than some aftermarket options
Overall, the AWE Tuning Track Edition Cat-Back Exhaust stands out as a well-engineered system that enhances both sound and performance for Subaru WRX/STI models. Its adaptability through the valve mechanism lends flexibility seldom found in similar exhaust setups. Compared with other aftermarket products, it strikes a commendable balance between aggressive sound and everyday usability.
| Specification | Details |
|---|---|
| Compatibility | 2011-2018 Subaru WRX/STI |
| Material | Mandrel-bent stainless steel |
| Dimensions | 48 x 24 x 14 inches |
| Weight | 58 pounds |
| Valve Feature | Adjustable valve-actuated exhaust tone |
| Installation | Direct bolt-on replacement |
From a personal perspective, this exhaust system offers a satisfying blend of sound and performance enhancement that respects the heritage of the WRX/STI platform. Its valve control delivers versatility that adapts well to daily driving and spirited runs alike. Owners seeking a premium upgrade will find the AWE Track Edition a worthwhile investment for improving their car’s character.
Owners seeking a premium upgrade will find the AWE Track Edition a worthwhile investment for improving their car’s character.
9. REV9 CB-083 FlowMaxx Stainless Steel Cat-back Exhaust Quad-tip system for

The REV9 CB-083 FlowMaxx Stainless Steel Cat-back Exhaust Quad-tip system offers a perfect blend of style and performance for Subaru WRX models from 2022 to It enhances your vehicle’s exhaust flow and audio, delivering a refined driving experience without compromising legal emission standards.
Designed for an exact fit, this exhaust system integrates effortlessly with all WRX trims. Its polished, double-walled quad tips add a distinctive look that complements the sporty design of your car while improving overall exhaust efficiency and sound quality.
This cat-back exhaust system is engineered to improve exhaust flow significantly. Installation is straightforward due to its direct-fit design, which means there is no need for modifications.
The 5-inch inlet and outlet paired with 5-inch polished stainless steel tips offer both durability and an aggressive appearance.
The system works downstream of the catalytic converter, ensuring compliance with emission regulations without requiring adjustments to existing control equipment. Constructed from high-quality stainless steel, it promises long-term reliability and resistance to corrosion.
The result is a quieter exhaust note with reduced drone, providing driving comfort on daily commutes and spirited drives alike. It is ideal for Subaru WRX owners seeking a factory-compatible upgrade that enhances both performance and aesthetic appeal.
Pros
- Direct-fit design allows easy installation with no modifications needed
- Durable stainless steel construction resists corrosion and wear
- CARB-legal setup preserves emission system integrity
Cons
- May not produce a very aggressive exhaust note for those seeking a louder sound
Quality craftsmanship and compatibility make the REV9 FlowMaxx exhaust system a solid upgrade for recent Subaru WRX models. It enhances exhaust flow and sound while maintaining emission compliance, standing out among other aftermarket options that might require adjustments.
With its polished quad-tip design and longevity, it adds both function and style effortlessly.
| Specification | Details |
|---|---|
| Brand | REV9 |
| Model Number | CB-083 |
| Compatibility | Subaru WRX (VB) 2022-2025 All Trims |
| Material | Stainless Steel |
| Exhaust Type | Cat-back |
| Inlet/Outlet Size | 2.5 inches |
| Tip Size | 3.5 inches Polished Double-walled Quad Tip |
| Installation | Direct Fit, No Modification Required |
| Emission Compliance | CARB Legal (Downstream of Catalytic Converter) |
| Included Components | Piping, Muffler, Clamp, Gasket |
Having explored various cat-back exhaust systems, this REV9 FlowMaxx stands out for balancing practical street use with performance upgrades. It won’t overpower with excessive noise but enriches the driving experience in a polished manner.
Its build quality reflects thoughtful engineering, making it a smart investment for WRX drivers who value durability and a clean aesthetic. Compared to some competitors, it offers hassle-free installation and guaranteed regulatory compliance, which adds peace of mind.
10. Stainless Steel Cat Back Exhaust System with 3″ Outlet Rounded

Elevate your Subaru WRX or STI Sedan’s performance and style with the Stainless Steel Cat Back Exhaust System featuring a sleek 3 outlet rounded design. It combines durability and aesthetics to transform your vehicle’s exhaust sound and appearance effortlessly.
Crafted specifically for models from 2015 through 2020, this exhaust system delivers a refined, deeper tone while enhancing your car’s rear look with its signature burnt tip design. Engineered with precision, it guarantees lasting impact resistance and a direct fit for hassle-free installation.
This exhaust system stands out due to its high-grade stainless steel construction, which ensures resistance to corrosion and long-term durability. The welds and flanges create a robust assembly that sustains performance across many miles. Its 3 piping and dual exit muffler improve exhaust flow, offering a mellow yet aggressive sound without overwhelming noise.
Designed for drivers seeking both performance and style, the system increases exhaust efficiency, which may contribute to slight performance gains on compatible Subaru models. Installation is straightforward thanks to a direct fit which fits seamlessly with original components. You can connect the system using exhaust clamps for convenience, or weld it for enhanced stability.
The dual exit outlets with a burnt tip finish add an elegant touch to your vehicle’s rear profile. Apart from enhancing sound, it gives a visually appealing upgrade that complements other exterior modifications.
This product is well suited for Subaru WRX and STI owners aiming to improve exhaust tone and aesthetics without compromising reliability.
Pros
- Durable stainless steel construction with corrosion resistance
- Mellow, deep exhaust tone with enhanced reverberation
- Direct fit design for easy installation with included hardware
Cons
- Requires welding for maximum durability, which may need professional assistance
The Stainless Steel Cat Back Exhaust System offers a solid upgrade for Subaru WRX/STI drivers seeking an improved sound and stylish look. Its quality materials and user-friendly fit make it a reliable choice for enhancing your car’s exhaust setup. While welding can enhance stability, the clamp option provides flexibility for various skill levels.
While welding can enhance stability, the clamp option provides flexibility for various skill levels.
| Specification | Details |
|---|---|
| Compatibility | 2015-2020 Subaru WRX & STI Sedan |
| Material | High-quality stainless steel |
| Main Pipe Diameter | 3 inches |
| Inlet Connection Size | 3 inches |
| Outlet Connection Size | 3 inches |
| Exhaust Tip | Dual 3″ outlet, burnt tip design |
| Weight | 37.7 pounds |
| Included Components | Muffler, gasket, pipe, tip, mounting hardware |
From personal experience, this exhaust system enhances both the auditory and visual appeal of a Subaru WRX or STI without unnecessary complexity. Its sound profile balances sporty and refined tones, which suits daily driving and spirited runs alike.
11. Tomei Full Titanium Muffler Kit Compatible with Subaru WRX/STI GV/VA

The Tomei Full Titanium Muffler Kit is engineered for Subaru WRX/STI models GV and VA, delivering exceptional exhaust performance. Crafted entirely from titanium, it offers an outstanding balance of weight reduction and durability, enhancing your vehicle’s overall efficiency.
Designed with a distinctive dual outlet setup, the muffler produces a sporty exhaust note that elevates the driving experience on every journey. Its precise fitment assures effortless installation, making it a reliable upgrade for compatible Subaru engines.
Constructed with premium titanium, the muffler provides excellent resistance to heat and corrosion. Its lightweight nature reduces overall vehicle mass, contributing positively to handling responsiveness.
Fitment is tailored specifically for EJ20, EJ25, and FA20DIT engines, allowing direct installation without any need for modifications. It belongs to the EXPREME Ti series, known for optimizing exhaust gas flow which results in enhanced engine response and power output.
Crafted by TOMEI, renowned for precision engineering, the muffler guarantees long-lasting performance even under demanding conditions. This muffler suits drivers seeking both performance upgrades and durable construction in their exhaust system. Installation is straightforward due to accurate dimensions and compatibility, offering a neat integration into your Subaru’s existing setup.
Installation is straightforward due to accurate dimensions and compatibility, offering a neat integration into your Subaru’s existing setup. Overall, it balances quality, sound, and functionality, making it a valuable addition for those aiming to enhance their WRX/STI’s exhaust system.
Pros
- Lightweight full titanium construction reduces vehicle weight.
- Dual outlet design creates balanced, sporty exhaust sound.
- Precision fitment enables direct installation without modifications.
Cons
- Premium materials and design contribute to a higher cost investment.
The Tomei Full Titanium Muffler Kit stands out for combining durability and performance in a package designed for Subaru WRX/STI models. Its superior materials and engineering translate into better exhaust flow and a distinct sound profile.
Compared with steel or carbon fiber options, the titanium build offers remarkable heat resistance and reduced weight. While priced higher, the benefits in quality and driving experience justify the investment. This muffler is a strong choice for owners focused on making a long-lasting, performance-oriented upgrade.
| Specification | Detail |
|---|---|
| Material | Full Titanium |
| Compatibility | Subaru WRX/STI GV/VA (EJ20, EJ25, FA20DIT) |
| Exhaust Design | Type-D Dual Outlet |
| Inlet Connection Size | 3.15 Inches |
| Outlet Connection Size | 3.51 Inches |
| Series | EXPREME Ti |
| Manufacturer | TOMEI |
When comparing exhaust mufflers, this titanium model delivers a rare combination of lightweight durability and refined sound. Its focus on exact engine compatibility reduces installation hassle often seen with generic kits. While it commands a premium price, the assurance of longevity and improved throttle response make it worthwhile.
For drivers wanting a significant upgrade with proven materials and design, this muffler is an excellent contender.
12. Invidia (HS15STIGTT) N1 Titanium Burnt Tip Dual Cat-Back Exhaust System

The Invidia N1 Titanium Burnt Tip Dual Cat-Back Exhaust System offers a perfect blend of style and sound for Subaru WRX/STI models from 2015 onwards. Crafted with precision and high-quality materials, it enhances your vehicle’s performance and delivers an aggressive exhaust note that car owners appreciate.
Designed specifically for Subaru WRX/STI 4-door models, this exhaust system stands out with its striking burnt titanium tips and durable stainless steel construction. It’s an excellent upgrade for those seeking a balance between aesthetics and enhanced exhaust flow.
Constructed from premium SUS304 stainless steel, the exhaust system boasts durability against corrosion and harsh driving conditions. Its 76mm (3) mandrel-bent piping ensures smooth exhaust gas flow, effectively reducing back pressure.
This design helps improve engine efficiency and responsiveness for a more spirited driving experience.
The CNC-machined flanges offer a secure and precise fit, making installation straightforward. Twin outlet burnt titanium tips measuring 101mm (4) add a touch of sophisticated style while resisting discoloration.
This exhaust system offers a balanced tone that is not overly loud yet aggressive enough to stand out. It suits drivers looking to upgrade from stock without hearing drone at cruising speeds.
The combination of quality materials and thoughtful engineering provides reassurance for long-term use.
Pros
- Durable SUS304 stainless steel construction resists corrosion
- Mandrel-bent piping enhances exhaust flow and reduces back pressure
- Stylish burnt titanium twin tips with polished finish
Cons
- Installation may require professional help for some users
The Invidia N1 Titanium Burnt Tip Dual Cat-Back Exhaust System effectively combines style, sound, and performance. Its quality build and design make it a reliable upgrade for Subaru WRX/STI owners who want a more dynamic exhaust note and improved flow. Compared to other exhaust systems, it offers a distinctive look with its titanium tips unmatched in this category.
Compared to other exhaust systems, it offers a distinctive look with its titanium tips unmatched in this category.
| Specification | Details |
|---|---|
| Compatible Models | 2015-Up Subaru WRX/STI 4 Door |
| Pipe Size | 76mm (3″) |
| Tip Size | 101mm (4″) |
| Material | SUS304 Stainless Steel |
| Tip Type | Single Layer Burnt Titanium Tips |
| Weight | 47 Pounds |
| Flanges | CNC Machined |
| Finish | Polished |
From my perspective, the Invidia N1 Titanium exhaust system stands out due to its superior craftsmanship and blend of form and function. It offers a significant enhancement in sound characteristics without sacrificing drivability.
While the price point might be higher than some alternatives, its performance benefits and quality materials justify the investment. The system will likely appeal to Subaru owners who value both aesthetics and technical upgrades in their vehicle.
Top Picks: Best Subaru WRX Exhaust in 2024
Sound levels and noise regulations
When choosing the best Subaru WRX exhaust, keeping sound levels and noise regulations in mind helps avoid issues with legality and community complaints. Understanding decibel ratings and sound intensity can guide buyers toward options that meet their preference for engine tone without being excessively loud. Many regions have street legal and emissions compliance standards that exhaust systems must meet to remain road-legal; selecting a product that is certified or tested ensures the vehicle stays within these limits.
Many regions have street legal and emissions compliance standards that exhaust systems must meet to remain road-legal; selecting a product that is certified or tested ensures the vehicle stays within these limits. Additionally, community noise restrictions and park regulations often limit how loud a vehicle can be, especially in residential or public areas, making quieter or moderately loud exhausts more suitable for everyday driving. Balancing performance upgrades with respect for local rules helps owners enjoy enhancements without facing fines or restrictions.
Installation and maintenance
Choosing the best Subaru WRX exhaust involves understanding how different designs affect both performance and ease of installation. Exhaust systems that bolt on directly to the vehicle’s existing hardware tend to require fewer tools and no significant modifications, making them friendlier for those new to car upgrades.
Regular maintenance typically includes inspecting for leaks or rust and checking mounting points to keep the system in good shape. Warranty coverage varies between manufacturers, so reviewing the terms can provide peace of mind regarding potential repairs or replacements.
Taking these factors into account helps ensure a smooth installation experience and longevity for the new exhaust setup.
Performance impact
Choosing the best subaru wrx exhaust involves understanding several key factors that affect the overall driving experience. A quality exhaust system can lead to noticeable horsepower and torque gains, typically enhancing the engine’s ability to breathe more efficiently and improve acceleration. Alongside performance improvements, the exhaust note tends to become deeper and more aggressive, giving the engine a distinct and appealing sound that many drivers appreciate.
Additionally, upgrading the exhaust may have a subtle effect on fuel efficiency, sometimes improving it by reducing engine strain, although this can vary depending on the specific system and driving habits. When selecting an exhaust, consider the material quality, design compatibility with the WRX, and ease of installation to make sure the upgrade meets your expectations in both sound and performance without compromising reliability.
Compatibility with your subaru wrx model
Choosing the right exhaust for a Subaru WRX involves paying close attention to factors such as yearspecific fitment, trim, and generation compatibility to achieve a proper installation and optimal performance. Exhaust systems designed for certain model years might not fit others exactly, so verifying the year range a particular exhaust supports will help avoid fitment issues. Different trims and generations often feature variations in exhaust piping, mounting points, and sensors, which means that parts made for one version of the WRX might require modifications or additional hardware for another.
Different trims and generations often feature variations in exhaust piping, mounting points, and sensors, which means that parts made for one version of the WRX might require modifications or additional hardware for another. Considering the differences between OEM and aftermarket exhausts is also key, as aftermarket options sometimes alter dimensions or attachment methods to improve performance or sound, which may impact ease of installation or require adjustments. Keeping these aspects in mind simplifies the selection process and helps find an exhaust that offers the right balance of sound, power gains, and compatibility with your specific WRX model without unnecessary complications.
Material and build quality
When choosing the best Subaru WRX exhaust, material and build quality play a major role in both performance and longevity. Common materials include stainless steel, titanium, and aluminized steel, each offering distinct benefits. Stainless steel is praised for its strong resistance to corrosion and overall durability, making it a reliable choice for various weather conditions.
Stainless steel is praised for its strong resistance to corrosion and overall durability, making it a reliable choice for various weather conditions. Titanium stands out for being lightweight and resistant to rust, though it usually comes at a higher price point. Aluminized steel offers a more budget-friendly option, with decent protection against rust but generally lower durability compared to the other two options.
The quality of welding and craftsmanship also greatly impacts the exhaust’s lifespan and sound quality. Well-executed welds contribute to better structural integrity and reduce the risk of leaks or cracks over time.
Investing in an exhaust system that balances high-quality materials with precise welding ensures a durable component that can handle demanding driving while enhancing the Subaru WRX’s distinctive engine tone.
Budget and brand reputation
Finding the best Subaru WRX exhaust involves weighing price range considerations to match your budget without compromising on quality. Options vary from affordable to premium, and understanding this helps in making an informed choice that fits expected performance and durability.
Trusted brands often come with a history of reliable customer reviews which offer valuable insight into real-world use, noise levels, material quality, and ease of installation. Such feedback often guides buyers towards products that balance sound enhancement and engine efficiency while providing long-term value. After sales support and warranty can also influence your decision since having access to responsive customer service and replacement parts ensures peace of mind throughout the ownership period.
Taking these factors into account will help in selecting an exhaust system that not only elevates your Subaru WRX’s performance but also maintains value over time.
Frquently Asked Questions
What Is The Difference Between Cat-Back And Turbo-Back Exhausts For The Subaru Wrx?
The main difference between cat-back and turbo-back exhausts for the Subaru WRX lies in the sections of the exhaust system they replace. A cat-back exhaust replaces the pipe and muffler from the catalytic converter back to the exhaust tip, improving sound and performance without impacting emissions components. In contrast, a turbo-back exhaust replaces all piping from the turbocharger outlet to the tailpipe, including the catalytic converter. This allows for greater exhaust flow and potential power gains but may affect emissions compliance and noise levels. Turbo-back systems are more comprehensive and performance-focused.
How Much Does It Typically Cost To Install An Aftermarket Exhaust On A Subaru Wrx?
The cost to install an aftermarket exhaust on a Subaru WRX typically ranges from $300 to $700. This price includes the cost of the exhaust system itself, which can vary widely based on brand and material, and the labor charges for a professional installation. High-end or custom systems may increase the total cost. Labor fees generally range from $100 to $200, depending on the shop’s rates and complexity of the installation. It’s important to factor in potential additional costs, such as modifications or tuning, which may be necessary to optimize performance.
How Does Upgrading The Exhaust Affect The Performance Of A Subaru Wrx?
Upgrading the exhaust on a Subaru WRX can significantly enhance its performance by improving exhaust flow, which reduces backpressure and allows the engine to breathe more freely. This results in increased horsepower and torque, providing better acceleration and overall power delivery. Additionally, a high-performance exhaust often reduces weight compared to the stock system, contributing to improved handling and responsiveness. Moreover, an upgraded exhaust can enhance the WRX’s sound, giving it a more aggressive and sportier tone that many enthusiasts appreciate. Combined with other modifications, the exhaust upgrade helps optimize engine efficiency and can improve throttle response, making the driving experience more engaging and dynamic.
Are There Any Exhausts That Provide A Louder Sound Without Compromising Reliability On A Subaru Wrx?
Yes, there are several aftermarket exhaust systems for the Subaru WRX that provide a louder, more aggressive sound without compromising reliability. Brands like Borla, Invidia, and Cobb offer high-quality cat-back and axle-back exhausts designed specifically for the WRX. These systems enhance the exhaust note while maintaining proper flow and backpressure, ensuring engine performance and durability remain intact. Choosing a reputable exhaust from these brands guarantees materials and craftsmanship that withstand heat and corrosion. Additionally, many options are designed to be bolt-on, making installation straightforward without affecting the vehicle’s reliability or warranty.
What Are The Top-Rated Exhaust Systems For The Subaru Wrx?
The top-rated exhaust systems for the Subaru WRX include the Cobb Tuning Cat-Back Exhaust, which is praised for its durable construction and aggressive sound. Another popular option is the Invidia N1 Cat-Back Exhaust, known for improving horsepower and torque while delivering a deep, sporty tone. Additionally, the Tomei Expreme Ti Cat-Back Exhaust is favored for its lightweight titanium build and excellent performance gains. These exhaust systems not only enhance the WRX’s sound but also boost overall engine efficiency and responsiveness, making them favorites among enthusiasts.
Conclusion
Choosing the best Subaru WRX exhaust involves balancing performance, sound quality, durability, and budget. Many options enhance engine efficiency and deliver a more aggressive tone, while some models may require professional installation or produce noise levels that aren’t suitable for daily driving.
The best Subaru WRX exhaust systems stand out by offering a blend of improved horsepower and a distinct exhaust note without compromising reliability. This makes them ideal for drivers who want a sportier feel and a personalized driving experience without extensive modifications. Whether upgrading for spirited weekend drives or modest daily enhancements, understanding these factors helps buyers make an informed choice.
Ultimately, selecting the right exhaust depends on personal preferences and intended use, but models that emphasize quality and fitment tend to provide the most satisfying results.
