2021 Subaru WRX Exhaust Systems
Select Your Submodel
- Borla®S-Type™ Cat-Back Exhaust System with Quad Rear ExitSubaru WRX 2021, S-Type™ Cat-Back Exhaust System with Quad Rear Exit by Borla®. The product is un-polished. Tip style may vary. Exhaust System Type: Cat-Back. Main Tubing Diameter: 3" to 2.25". Exhaust System Sound: Aggressive / Loud....$1,548.99 - $1,832.99
- MBRP®Pro Series™ 304 SS Cat-Back Exhaust System with Quad Rear ExitSubaru WRX / WRX STI 2021, Pro Series™ 304 SS Cat-Back Exhaust System with Quad Rear Exit by MBRP®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". The PRO Series exhausts from MBRP is for the...$864.99 - $1,059.99
- MBRP®Pro Series™ 304 SS Street Version Axle-Back Exhaust System with Quad Rear ExitSubaru WRX / WRX STI 2021, Pro Series™ 304 SS Street Version Axle-Back Exhaust System with Quad Rear Exit by MBRP®. Exhaust System Type: Axle-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 2.5". Exhaust System Sound:...$354.99 - $464.99
- MBRP®Armor Pro™ 304 SS Cat-Back Exhaust System with Single Rear ExitSubaru WRX / WRX STI 2021, Armor Pro™ 304 SS Cat-Back Exhaust System with Single Rear Exit by MBRP®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". Exhaust System Sound: Moderate. The MBRP...$659.99 - $724.99
- AWE Tuning®Track Edition™ 304 SS Cat-Back Exhaust System with Quad Rear ExitSubaru WRX / WRX STI 2021, Track Edition™ 304 SS Cat-Back Exhaust System with Quad Rear Exit by AWE Tuning®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: 304 SS. Exhaust System Sound: Aggressive / Loud. Sophisticated sound...$1,095.00
- Dorman®Exhaust Manifold Hardware KitSubaru WRX / WRX STI 2021, Exhaust Manifold Hardware Kit by Dorman®. Dorman manifold bolt and spring kits are just what you need to secure the front flange. Dorman offers products like fasteners and solutions to keep your vehicle...Direct replacement for a proper fitBuilt to Last$14.90
- AERO Exhaust®AR Series 304 Stainless Steel Round Performance Exhaust ResonatorSubaru WRX 2021, AR Series 304 Stainless Steel Round Performance Exhaust Resonator by AERO Exhaust®. Resonator Body Length: 10". Resonator Overall Length: 14". Resonator Sound: Aggressive / Loud. Resonator Configuration: Center -...$59.99 - $105.99
- AERO Exhaust®TR Series 304 Stainless Steel Round Performance Exhaust ResonatorSubaru WRX 2021, TR Series 304 Stainless Steel Round Performance Exhaust Resonator by AERO Exhaust®. Resonator Sound: Moderate. Resonator Configuration: Center - Center. The TR Series Resonators are the most popular resonators AERO...$65.99 - $92.99
- AERO Exhaust®Turbine Series Round Performance Exhaust MufflerSubaru WRX 2021, Turbine Series Round Performance Exhaust Muffler by AERO Exhaust®. Muffler Body Length: 14". Muffler Overall Length: 20". Muffler Sound: Aggressive / Loud. Muffler Configuration: Center - Center. The AERO Exhaust...$149.99
- Fel-Pro®Exhaust Manifold Gasket SetSubaru WRX / WRX STI 2021, Exhaust Manifold Gasket Set by Fel-Pro®. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the...Ensures reliable sealing performanceMade using advanced technologies and molded rubber chemistry$11.46
- PERRIN Performance®Red Exhaust Pipe HangerSubaru WRX / WRX STI 2021, Red Exhaust Pipe Hanger by PERRIN Performance®. Give your stock exhaust system some serious attitude with PERRIN Performance slash cut exhaust tips. PERRIN large, slash cut tips are designed to fill the...Adds an aggressive lookCorrosion-resistant stainless steel construction$12.75
- TRQ®Oxygen SensorSubaru WRX Base / Limited / Premium 2021, Oxygen Sensor by TRQ®. Position: Downstream. If your oxygen sensor fails, replace it with this top-grade part developed to easily fix the problem. Built to fit and function exactly as the part...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$34.15$35.95Save $1.80 (5%)
- TRQ®Upstream O2 Oxygen SensorSubaru WRX 2021, Upstream O2 Oxygen Sensor by TRQ®. TRQ oxygen sensors are manufactured to precise specifications using premium raw materials to optimize your vehicle’s emission system. Each sensor is isostatically-pressed for...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$68.35$71.95Save $3.60 (5%)
- TRQ®Upstream and Downstream 2-Piece O2 Oxygen Sensor SetSubaru WRX 2021, Upstream and Downstream 2-Piece O2 Oxygen Sensor Set by TRQ®. TRQ oxygen sensors are manufactured to precise specifications using premium raw materials to optimize your vehicle’s emission system. Each sensor is...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$94.00$98.95Save $4.95 (5%)
- Walker Products®Oxygen SensorSubaru WRX 2021, Oxygen Sensor by Walker Products®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...High quality at an affordable priceExpertly made from premium materials$66.83 - $146.36
- Walker Products®Premium Oxygen SensorSubaru WRX 2021, Premium Oxygen Sensor by Walker Products®. Position: Downstream. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test...Improved Engine Response & PerformanceLower Emissions$76.58 - $112.34
- Walker Products®Premium Air Fuel Ratio SensorSubaru WRX STI Base / Limited 2021, Premium Air Fuel Ratio Sensor by Walker Products®. Position: Upstream. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment...Designed to meet or exceed OE specifications in form, fit and functionGlobal coverage for import and/or domestic applications$139.71
- Walker Products®Wideband Premium Oxygen SensorSubaru WRX Base / Limited / Premium 2021, Wideband Premium Oxygen Sensor by Walker Products®. Position: Upstream. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original...High quality at an affordable priceExpertly made from premium materials$110.61
- AP Exhaust®Enforcer Series Aluminized Steel Round Glass Pack Exhaust MufflerUniversal Enforcer Series Aluminized Steel Round Glass Pack Exhaust Muffler by AP Exhaust®. Muffler Structure: Straight-through. Muffler Configuration: Center - Center. Today’s exhaust performance market continues to cover a broad...Aluminized materials for superior corrosion protectionIdeal for the economy buyer$13.46 - $38.58
- Different Trend®Flow II Series Stainless Steel Oval Gray Exhaust MufflerUniversal Flow II Series Stainless Steel Oval Gray Exhaust Muffler by Different Trend®. Muffler Sound: Moderate. Different Trend provides variety of product selections, premium quality products, superior value, and the best in customer...$40.43 - $79.32
- AP Exhaust®Xlerator Performance Exhaust Muffler with Inlet/Outlet NeckUniversal Xlerator Performance Exhaust Muffler with Inlet/Outlet Neck by AP Exhaust®. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a product demand is not...Deep performance soundIncreased exhaust flow$25.34 - $62.13
- Black Widow®Race Venom Angry Housewife™ Stainless Steel Oval Gray Exhaust MufflerUniversal Race Venom Angry Housewife™ Stainless Steel Oval Gray Exhaust Muffler by Black Widow®. Muffler Sound: Aggressive / Loud. Black Widow Race Venom series mufflers have the same patent pending internal hourglass design as the...$99.00 - $114.00
- iD Select®ECO II Universal Fit Catalytic ConverterUniversal ECO II Catalytic Converter by iD Select®. Converter Configuration: Universal Fit. Catalytic Converter Overall Length: 16". Swap out your worn-out or malfunctioning part with this top-notch exhaust product from iD Select....$144.22 - $146.77
- Kooks®Stainless Steel Round Stafford Spec Silver Exhaust Muffler (3.5" ID, 3.5" OD, 10" Length)Universal Stainless Steel Round Stafford Spec Silver Exhaust Muffler by Kooks®. Muffler Inlet Diameter: 3.5". Muffler Outlet Diameter: 3.5". Muffler Body Length: 10". Muffler Overall Length: 15.5". Muffler Sound: Aggressive / Loud. This...$64.02
- Borla®S-Type™ Stainless Steel Round Gray Exhaust MufflerUniversal S-Type™ Stainless Steel Round Gray Exhaust Muffler by Borla®. Muffler Inlet Diameter: 2.5". Muffler Outlet Diameter: 2.5". Muffler Body Length: 10". Muffler Overall Length: 15". Muffler Sound: Mild / Stock. Muffler...$191.99 - $197.99
- Flowmaster®40 Series Delta Flow™ Aluminized Steel Oval Black Exhaust MufflerUniversal 40 Series Delta Flow™ Aluminized Steel Oval Black Exhaust Muffler by Flowmaster®. Without Hangers. Muffler Body Length: 13". Muffler Overall Length: 19". Muffler Sound: Aggressive / Loud. Muffler Structure: Chambered. The...$129.95 - $133.95
- Flowmaster®40 Series Delta Flow™ Aluminized Steel Oval Black Exhaust Muffler (2.5" Offset ID, 2.5" Offset OD, 13" Length)Universal 40 Series Delta Flow™ Aluminized Steel Oval Black Exhaust Muffler by Flowmaster®. Without Hangers. Muffler Inlet Diameter: 2.5". Muffler Outlet Diameter: 2.5". Muffler Body Length: 13". Muffler Overall Length: 19". Muffler...$133.95
- Flowmaster®Pro Series™ Stainless Steel Round Laminar Flow Black Exhaust Muffler (5" Center ID, 5" Center OD, 20" Length)Universal Pro Series™ Stainless Steel Round Laminar Flow Black Exhaust Muffler by Flowmaster®. Muffler Inlet Diameter: 5". Muffler Outlet Diameter: 5". Muffler Body Length: 20". Muffler Overall Length: 26". Muffler Sound: Moderate....$284.22
- Flowmaster®Pro Series™ Stainless Steel Round Race Black Exhaust Muffler with Turn DownUniversal Pro Series™ Stainless Steel Round Race Black Exhaust Muffler with Turn Down by Flowmaster®. Muffler Outlet Diameter: 3.5". Muffler Body Length: 16". Muffler Overall Length: 22". Muffler Sound: Moderate. Muffler Structure:...$265.95 - $272.95
- Black Widow®Widowmaker™ Stainless Steel Round Gray Exhaust MufflerUniversal Widowmaker™ Stainless Steel Round Gray Exhaust Muffler by Black Widow®. Muffler Body Length: 10". Muffler Sound: Aggressive / Loud. Muffler Configuration: Center - Center. Black Widow MOST AGGRESSIVE muffler yet and with...$124.00 - $134.00
Shop By Service Type
2021 Subaru WRX Exhaust Reviews
5 reviews
I Would Definitely Buy Again
SLP® - Loud Mouth™ Stainless Steel Round Bullet-Type Silver Exhaust Resonator (2.5" Center ID, 2.5" Center OD, 14" Length)Posted by Robert (Monroe, WI) / November 20, 20222000 Dodge Dakota