Collection: Subaru WRX/STI 15-21'
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MBRP Stainless Steel 3" Cat-Back - Single Exit | 2011 - 2021 Subaru WRX / STI (S4803)
Regular price From $576.80 USDRegular priceUnit price / per$821.46 USDSale price From $576.80 USDSale -
aFe Takeda 3in to 2.25in SS Cat-Back Exhaust Subaru WRX/STI (15-21) (49-36801-L)
Regular price From $1,634.12 USDRegular priceUnit price / per$1,852.00 USDSale price From $1,634.12 USDSale -
Clutch Masters FX350 Clutch Kit | 2018-2021 Subaru WRX (15915-HDFF)
Regular price $740.00 USDRegular priceUnit price / per$925.00 USDSale price $740.00 USDSale -
Clutch Masters FX350 HR Street/Race Clutch Kit | 2004-2019 Subaru STI (15017-HRFF)
Regular price $676.00 USDRegular priceUnit price / per$845.00 USDSale price $676.00 USDSale -
Clutch Masters FX400 HD Race/Street 8-Puck Clutch Kit | 2004-2019 Subaru STI (15017-HDCL)
Regular price $680.00 USDRegular priceUnit price / per$850.00 USDSale price $680.00 USDSale -
Competition Clutch Ceramic 6 Puck Sprung Disc Subaru WRX STI (04-21) (99707-1620)
Regular price $195.00 USDRegular priceUnit price / per$195.00 USDSale price $195.00 USD -
Competition Clutch Stage 2 2100 Series Clutch Kit | 2006-2014 Subaru WRX (15026-2100)
Regular price $700.00 USDRegular priceUnit price / per$850.00 USDSale price $700.00 USDSale -

Competition Clutch Stage 3 Segmented Ceramic Clutch Kit | Subaru 06-14 WRX/Outback XT (15026-2600)
Regular price $753.53 USDRegular priceUnit price / per$915.00 USDSale price $753.53 USDSale -
Competition Clutch Stage 4 6 Pad Ceramic Clutch Kit | Subaru WRX 06-11, Legacy GT 05-11
Regular price $753.53 USDRegular priceUnit price / per$915.00 USDSale price $753.53 USDSale -
Competition Clutch Stock Clutch Kit w/Flywheel | Subaru WRX/Legacy GT (05-11) (15026-STOCK)
Regular price $572.35 USDRegular priceUnit price / per$695.00 USDSale price $572.35 USDSale -
Cusco Front Member Power Brace | 2015-2021 Subaru STI (6A1 492 M)
Regular price $320.00 USDRegular priceUnit price / per$400.00 USDSale price $320.00 USDSale -
Cusco Front Member Power Brace | 2015-2018 Subaru WRX / STi (6A1 492 FM)
Regular price $232.00 USDRegular priceUnit price / per$290.00 USDSale price $232.00 USDSale -
Cusco Front Power Brace | 2015+ Subaru WRX (6A5 492 FS)
Regular price $232.00 USDRegular priceUnit price / per$290.00 USDSale price $232.00 USDSale -
Cusco Rear Power Brace End | 2015-2018 Subaru WRX / STi (6A1 492 RE)
Regular price $228.00 USDRegular priceUnit price / per$285.00 USDSale price $228.00 USDSale -
EBC 3GD Sport Dimpled and Slotted Rear Brake Rotors | 2022+ Subaru WRX (GD7710)
Regular price $297.85 USDRegular priceUnit price / per$389.49 USDSale price $297.85 USDSale -
EBC Blade High Carbon Slotted Rear Brake Rotors | 2022+ Subaru WRX (BSD7710)
Regular price $327.64 USDRegular priceUnit price / per$428.44 USDSale price $327.64 USDSale -
EBC Blue Stuff NDX Front Brake Pads | Multiple Fitments (DP51210)
Regular price $214.88 USDRegular priceUnit price / per$281.00 USDSale price $214.88 USDSale -
EBC RedStuff Front Brake Pads | Multiple Fitments (DP31210C)
Regular price $214.88 USDRegular priceUnit price / per$281.00 USDSale price $214.88 USDSale -
EBC RK Series Premium Front Brake Rotors | 2004-2007 Subaru STI (RK1344)
Regular price $216.71 USDRegular priceUnit price / per$283.39 USDSale price $216.71 USDSale -
EBC USR BlackDash Sport Slotted Rear Brake Rotors | 2022+ Subaru WRX (USR7710)
Regular price $297.85 USDRegular priceUnit price / per$389.49 USDSale price $297.85 USDSale
Upgrade Your Subaru WRX/STI 2015-2021 with Performance Parts & Accessories
This collection is tailored specifically for Subaru WRX and STI models from 2015 to 2021, offering a range of aftermarket parts designed to enhance your car’s performance, handling, and style. Whether you want to sharpen your driving experience or customize your vehicle’s look, these components fit your WRX/STI with confidence.
Which performance upgrades make the biggest difference for WRX/STI handling?
Improving handling on your WRX/STI starts with suspension and brake upgrades that enhance control and responsiveness. Upgrading coilovers or sway bars can reduce body roll and improve cornering precision, while performance brake kits provide stronger, more consistent stopping power under aggressive driving conditions.
- Adjustable coilovers for customizable ride height and damping
- Upgraded sway bars to reduce chassis flex
- Big brake kits with larger rotors and multi-piston calipers
- High-performance brake pads for improved bite and fade resistance
How do engine and drivetrain parts boost your WRX/STI’s performance?
Aftermarket engine and drivetrain components can improve power delivery, reliability, and throttle response. Popular upgrades include enhanced intake and exhaust systems, upgraded clutches, and stronger mounts that reduce drivetrain movement. These parts work together to optimize your WRX/STI’s performance without compromising daily drivability.
What exterior and interior accessories help customize your WRX/STI?
Personalizing your Subaru WRX/STI goes beyond performance with a variety of styling and comfort upgrades. From aerodynamic aero kits and lighting enhancements to upgraded shift knobs and steering wheels, these accessories let you tailor your vehicle’s appearance and driving feel. Shop the Subaru WRX/STI 15-21 collection at WheelFlip to find parts that fit perfectly and elevate your build.









