Collection: Subaru WRX/STI 15-21'
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Torque Solution -10AN Turbo Oil Return Line Kit | Subaru EJ (95-14) (TS-SU-486K-G)
Regular price $115.54 USDRegular priceUnit price / per$144.43 USDSale price $115.54 USDSale -
HKS Super Turbo Ti Cat-Back Exhaust | Subaru WRX / WRX STI (15-21) (31029-AF013V)
Regular price $5,040.00 USDRegular priceUnit price / per$6,300.00 USDSale price $5,040.00 USDSale -
Project Mu B-Force Brake Pads (Rear) - Mitsubishi Evolution 8/9 03-07 / Subaru WRX STI 04-17
Regular price $156.04 USDRegular priceUnit price / per$189.47 USDSale price $156.04 USDSale -
ACT 6 Pad Rigid Race Disc | Multiple Subaru Fitments (6240018)
Regular price $175.00 USDRegular priceUnit price / per$216.00 USDSale price $175.00 USDSale -
Perrin Intercooler Core & Beam | 2015-2019 Subaru WRX/STI (PSP-ITR-437-1)
Regular price $876.48 USDRegular priceUnit price / per$1,411.00 USDSale price $876.48 USDSale -
WRX 02-07 Turbosmart Supersonic Blow Off Valve - Black (TS-0205-1316)
Regular price $329.58 USDRegular priceUnit price / per$430.99 USDSale price $329.58 USDSale -
Turbosmart Vee-Port Blow Off Valve - Blue | Multiple Subaru Fitments (TS-0205-1135)
Regular price $204.13 USDRegular priceUnit price / per$280.99 USDSale price $204.13 USDSale -
Turbosmart Supersonic Blow Off Valve for Mazda/Subaru - Black (TS-0205-1310)
Regular price $329.58 USDRegular priceUnit price / per$430.99 USDSale price $329.58 USDSale -
aFe Pro Guard D2 Oil Filter Set of 4 | Scion FR-S / Subaru BRZ (13-17) (44-LF018-MB)
Regular price $54.00 USDRegular priceUnit price / per$54.00 USDSale price $54.00 USD -
aFe Pro GUARD D2 Oil Filter | Scion FR-S / Subaru BRZ 2013 (44-LF018)
Regular price $15.61 USDRegular priceUnit price / per$16.00 USDSale price $15.61 USDSale -
aFe Pro GUARD D2 Oil Filter | Nissan Cars (03-13) / Subaru Cars H4 (04-13) (44-LF017)
Regular price $15.61 USDRegular priceUnit price / per$16.00 USDSale price $15.61 USDSale -
aFe Pro GUARD D2 Oil Filter | Nissan Trucks (99-14) / Honda Cars (01-14) (44-LF016)
Regular price $15.61 USDRegular priceUnit price / per$16.00 USDSale price $15.61 USDSale -

aFe Pro GUARD D2 Oil Filter (4 Pack) | Nissan Cars L4 (02-17) / Subaru Cars H4 (04-17) (44-LF017-MB)
Regular price $54.00 USDRegular priceUnit price / per$54.00 USDSale price $54.00 USD -
aFe Pro GUARD D2 Oil Filter (4 Pack) | Nissan Trucks (99-14) / Honda Cars (01-15) (44-LF016-MB)
Regular price $54.00 USDRegular priceUnit price / per$54.00 USDSale price $54.00 USD -
BLOX Racing Up Pipe to Turbo MLS Gasket (BXFL-50013)
Regular price $8.41 USDRegular priceUnit price / per$13.00 USDSale price $8.41 USDSale -
BLOX Racing Cylinder Head to Exhaust Manifold MLS Gasket | 2015-2017 Subaru WRX (BXFL-50020)
Regular price $12.29 USDRegular priceUnit price / per$19.00 USDSale price $12.29 USDSale -
Cusco Billet Aluminum Engine Pitch Stop Mount | Subaru WRX/STI/LGT/FXT (02-24) (6A1 911 PS)
Regular price $136.00 USDRegular priceUnit price / per$170.00 USDSale price $136.00 USDSale -
Radium Subaru Fuel Filter Mount | 2015-2021 Subaru WRX/STI, 2014-2018 Subaru Forester XT (20-0605)
Regular price $65.85 USDRegular priceUnit price / per$79.95 USDSale price $65.85 USDSale -
Radium Fuel Access Cover | 2014-2021 Subaru WRX/STI (20-0746)
Regular price $65.85 USDRegular priceUnit price / per$79.95 USDSale price $65.85 USDSale -
GSC Power Division GSC Intake Valve Sets -STD | 2015 - 2021 Subaru FA20F WRX (B2282-50)
Regular price $906.71 USDRegular priceUnit price / per$1,101.00 USDSale price $906.71 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.





