2021 Subaru WRX Exhaust Parts

Essential 2021 Subaru WRX Exhaust Parts

MagnaFlow – OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.21-822)

OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$839.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 21-822. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. Designed to fit the 2015-2021 Subaru WRX and 2014-2018 Subaru Forester, this direct-fit catalytic converter also interchanges with OE parts 44612AA771 and 44612AA770. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
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MagnaFlow – OEM Grade Federal / EPA Compliant Universal Catalytic Converter (Part No.51206)

OEM Grade Federal / EPA Compliant Universal Catalytic Converter

from

$194.99
MagnaFlow OEM Grade Federal/EPA Compliant Universal Catalytic Converter 51206 helps keep the check engine light off. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). With highly corrosion resistant, stainless steel construction, you can have confidence in the quality of this catalytic converter. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
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Walker – CalCat Catalytic Converter- CARB Certified, Universal / Fabrication Needed (Part No.84406)

CalCat Catalytic Converter- CARB Certified, Universal / Fabrication Needed

from

$347.99
Designed, tested and validated for assured compliance to meet CARB standards, Walker® CalCat® Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.

Product Features:
  • CARB COMPLIANT — For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state’s aftermarket converter regulations.
  • SUPERIOR TECHNOLOGY — Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)
  • CONSISTENT PERFORMANCE — Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
  • DURABLE — Features stainless-steel body with aluminized pipe and heat shields for durability
  • FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
  • BUY WITH CONFIDENCE — Backed by Walker’s 50,000-mile/80,000-kilometer emissions and structural integrity warranty
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MagnaFlow – OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.52621)

OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$534.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 52621. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. Designed to fit the 2015-2021 Subaru WRX and 2014-2018 Subaru Forester, this direct-fit catalytic converter also interchanges with OE part 44621AA140. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
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MagnaFlow – Competition Series Axle-Back Performance Exhaust System (Part No.19362)

Competition Series Axle-Back Performance Exhaust System

from

$663.99
The MagnaFlow Competition Series Axle-Back Performance Exhaust System 19362 19362 brings an aggressive, attention-grabbing edge to the deep resonant exhaust note we’re so well known for. This exhaust kit is designed to enhance your 2.0L, 2.5L 2011-2018 Subaru with dyno-proven performance made possible thanks to fast-flowing mandrel bent 2in. main piping and 0 Straight-Through mufflers ending in a Quad Split Rear exit with 4in. Polished Welded-On Double Wall Angle Cut Folded Edge tips featuring a sporty finish. The exhaust system’s axle-back layout replaces your ride’s exhaust system from near the rear axle on back. Exhaust system 19362 is engineered to make your vehicle’s engine produce Aggressive exterior and Moderate interior sound levels, befitting its competition-oriented design. 19362’s direct-fit design makes installation a breeze thanks to the use of advanced 3D scanning techniques. This performance exhaust system is made of 100% durable and corrosion-resistant stainless steel and produced using CNC precision robotic manufacturing, all backed by MagnaFlow’s limited lifetime warranty. Please check to ensure compliance with local noise regulations.

Product Features:
  • Crafted from 409 stainless steel with all mandrel-bent tubing
  • Increased horsepower and torque
  • Aggressive exterior sound
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MBRP Exhaust – Pro Series, 2.5 In Axle Back System: Polished Tip, 304 Stainless Steel, Designed for Power and Sound (Part No.S4801304)

Pro Series, 2.5 In Axle Back System: Polished Tip, 304 Stainless Steel, Designed for Power and Sound

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$371.99
MBRP(R) axle back performance exhaust for subaru WRX2.0L, subaru WRX STI 2.5L models. 2.5 Inch axle back, dual split rear exit, T304 stainless steel, street version and single wall T304 exhaust polished tips.

Product Features:
  • Enhanced Sound And Tone Of Boxer Engine
  • T304 Stainless Steel
  • Limited Lifetime Warranty
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Borla Performance Exhaust – T-304 Ss, 3" Pipe Dia To 2.25" Dia, Single Exhaust With Dual Exit (Part No.140595)

T-304 Ss, 3" Pipe Dia To 2.25" Dia, Single Exhaust With Dual Exit

from

$1548.99
BORLA(R) Cat-Back(TM) and Axle-Back multi-core technology is designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow and power, and Precision Computer Controlled CNC Manufacturing Ensures An Accurate Fit.

Product Features:
  • BORLA(R) Cat-Back(TM) Exhausts Feature, Straight Through And Multi-Core Technology To Unleash Hidden Horsepower
  • Each System Is Built From Aircraft Grade High Quality T-304 Stainless Steel
  • Increase The Overall Sound Level And Performance
  • Precision Computer Controlled CNC Manufacturing Ensures An Accurate Fit
  • ATAK(R) Technology Is Based On Specifically-Tuned Attributes Of The Internal Muffler Cores, Which Are Calibrated On A Vehicle-By-Vehicle Basis To Deliver The Mostádesirableásound
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MagnaFlow – Competition Series Cat-Back Performance Exhaust System (Part No.19361)

Competition Series Cat-Back Performance Exhaust System

from

$1264.99
The MagnaFlow Competition Series Cat-Back Performance Exhaust System 19361 19361 brings an aggressive, attention-grabbing edge to the deep resonant exhaust note we’re so well known for. This exhaust kit is designed to enhance your 2.0L, 2.5L 2011-2018 Subaru with dyno-proven performance made possible thanks to fast-flowing mandrel bent 3in. main piping and 1 Straight-Through mufflers ending in a Quad Split Rear exit with 4in. Polished Welded-On Double Wall Angle Cut Folded Edge tips featuring a sporty finish. The exhaust system’s cat-back layout replaces your ride’s exhaust system from near the catalytic converter on back. Exhaust system 19361 is engineered to make your vehicle’s engine produce Aggressive exterior and Moderate interior sound levels, befitting its competition-oriented design. 19361’s direct-fit design makes installation a breeze thanks to the use of advanced 3D scanning techniques. This performance exhaust system is made of 100% durable and corrosion-resistant stainless steel and produced using CNC precision robotic manufacturing, all backed by MagnaFlow’s limited lifetime warranty. Please check to ensure compliance with local noise regulations.

Product Features:
  • Crafted from 409 stainless steel with all mandrel-bent tubing
  • Increased horsepower and torque
  • Aggressive exterior sound
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Dorman – Help – Exhaust Manifold Hardware Kit (Part No.32112)

Exhaust Manifold Hardware Kit

from

$22.99
This exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles, and is made from quality materials for reliable performance.

Product Features:
  • Direct replacement – this exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles
  • Ideal solution – this kit is a reliable replacement for the original hardware that is missing or damaged, or has failed
  • Durable construction – this kit is made from quality components to ensure reliable performance and a long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Felpro – Exhaust Pipe Flange Gasket (Part No.61106)

Exhaust Pipe Flange Gasket

from

$21.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Felpro – Exhaust Pipe Flange Gasket (Part No.60902)

Exhaust Pipe Flange Gasket

from

$7.49
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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Felpro – Exhaust Pipe Flange Gasket (Part No.60992)

Exhaust Pipe Flange Gasket

from

$7.79
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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MAHLE Original – Catalytic Converter Gasket (Part No.F31662)

Catalytic Converter Gasket

from

$11.99
MAHLE gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.

Product Features:
  • All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
  • MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
  • MAHLE gaskets is the leader in Domestic, Asian and European applications
  • The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
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2021 Subaru WRX Exhaust Parts

You count on your 2021 Subaru WRX to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Exhaust Parts. With 9 Exhaust Parts ranging in price from $7.49 to $1,548.99, you’re sure to find everything you need for your 2021 Subaru WRX.

Brands matter. If you want to shop a specific Exhaust Parts brand, we stock 4 different brands like Felpro, Magnaflow, and Borla Performance Exhaust. 2021 Subaru WRX Exhaust Parts start as low as $7.49!

One of the best ways to find top quality OEM or aftermarket Exhaust Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 45 extensive product reviews on 2021 Subaru WRX Exhaust Parts.

Did we mention you can order your Exhaust Parts from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Exhaust Parts inventory for your 2021 Subaru WRX below to get started!

Top-Rated Exhaust Parts Brands For Your 2021 Subaru WRX

Trusted Exhaust Parts OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2021 Subaru WRX running right for years to come. In our inventory you’ll find brands like Felpro, Magnaflow, Borla Performance Exhaust, and even more.

Popular Felpro Exhaust Parts

You’ll find popular Felpro brand products across Exhaust Pipes. All are waiting to get your 2021 Subaru WRX back on the road. Some of the top-rated Felpro products in these categories are:
Exhaust Pipe Flange Gasket
from $21.49
(15)
Exhaust Pipe Flange Gasket
Exhaust Pipe and Flange Gaskets

FAQs for 2021 Subaru WRX Exhaust Parts

What are the most purchased Exhaust Parts for the 2021 Subaru WRX?

Out of 9 Exhaust Parts for the 2021 Subaru WRX, the most popular in our inventory are:
OEM Grade Federal / EPA Compliant Universal Catalytic Converter
from $194.99
This product is not rated
OEM Grade Federal / EPA Compliant Universal Catalytic Converter
Catalytic Converters
Exhaust Pipe Flange Gasket
from $7.79
This product is not rated
Exhaust Pipe Flange Gasket
Exhaust Pipe and Flange Gaskets
Exhaust Pipe Flange Gasket
from $7.49
This product is not rated
Exhaust Pipe Flange Gasket
Exhaust Pipe and Flange Gaskets