Collection: Subaru WRX/STI 15-21'
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Whiteline KDT901 Gearbox Shift Bushings | Subaru WRX/STI, Forester XT (04-23) (KDT901)
Regular price $54.28 USDRegular priceUnit price / per$77.88 USDSale price $54.28 USDSale -
Mishimoto OEM 3in Downpipe to Cat-Back Adapter | Subaru WRX/WRX STI/Legacy (MMEXH-ADAP-SDAE)
Regular price $64.95 USDRegular priceUnit price / per$71.00 USDSale price $64.95 USDSale -
ACT Heavy Duty Race Rigid 6 Pad Pressure Plate Clutch | Subaru WRX (06-21) (SB5-HDR6)
Regular price $954.00 USDRegular priceUnit price / per$1,178.00 USDSale price $954.00 USDSale -
WeatherTech Scratch Protection | Subaru WRX (14-21) (SP0556)
Regular price $79.76 USDRegular priceUnit price / per$113.95 USDSale price $79.76 USDSale -

MagnaFlow 2.5L Subaru WRX Catalytic Converter | Subaru Impreza/Forester/Outback (92-21) (24416)
Regular price $719.98 USDRegular priceUnit price / per$921.00 USDSale price $719.98 USDSale -
Magnaflow Comp Series Stainless Axle-Back | Subaru Impreza/WRX/STI (11-19) (19362)
Regular price $728.68 USDRegular priceUnit price / per$741.00 USDSale price $728.68 USDSale -
ACT Heavy Duty Race Rigid 4 Pad Clutch Kit | Multiple Subaru Fitments (SB5-HDR4)
Regular price $916.00 USDRegular priceUnit price / per$1,131.00 USDSale price $916.00 USDSale -
Action Clutch Stage 1 Clutch Kit | Subaru WRX (ACR-1816)
Regular price $494.08 USDRegular priceUnit price / per$509.96 USDSale price $494.08 USDSale -
Whiteline Rear Control Arm Bushing Kit (Subaru BRZ / Scion FR-S 13-20) W63225
Regular price $141.42 USDRegular priceUnit price / per$202.88 USDSale price $141.42 USDSale -
WeatherTech LampGard | Subaru WRX (18+) (LG1012)
Regular price $39.49 USDRegular priceUnit price / per$58.95 USDSale price $39.49 USDSale -

ACT HD/Race 6 Pad Clutch Kit | Subaru Impreza/Legacy/Forester/Outback/B9 Tribeca (92-25) (SB12-HDG6)
Regular price $1,176.48 USDRegular priceUnit price / per$1,548.00 USDSale price $1,176.48 USDSale -
Diode Dynamics 2015-2017 Subaru WRX SS6 Pro LED Kit White Fog 6000K | Subaru WRX/STi (15-17) (DD8590)
Regular price $470.54 USDRegular priceUnit price / per$499.95 USDSale price $470.54 USDSale -
(set of 4) Konig Oversteer Gloss Black | 17x8" +35mm | 5x114.3mm Wheel
Regular price $1,837.36 USDRegular priceUnit price / per$1,837.36 USDSale price $1,837.36 USD -
PowerStop KOE7028 Front & Rear Autospecialty Brake Kit | Subaru Legacy/Outback/WRX (15-20) (SPF7028)
Regular price $315.33 USDRegular priceUnit price / per$318.98 USDSale price $315.33 USDSale -
Whiteline Service Kit - Subaru Impreza 2000-2007
Regular price $20.13 USDRegular priceUnit price / per$28.88 USDSale price $20.13 USDSale -
Fel-Pro Engine Oil Pan Gasket Set | Subaru BRZ / WRX / Toyota 86 (13-20 / 15-21 / 17-20)
Regular price $30.28 USDRegular priceUnit price / perSale price $30.28 USD -
Fel-Pro Crankshaft Seal Kit | Subaru WRX / BRZ / Scion FR-S / Toyota 86 (07-23)
Regular price $55.05 USDRegular priceUnit price / perSale price $55.05 USD -
Fel-Pro Engine Conversion Gasket Set | Subaru WRX (15-20) / BRZ (13-20) / Scion FR-S (13-16) / Toyota 86 (17-20) (CS26524)
Regular price $52.31 USDRegular priceUnit price / perSale price $52.31 USD -
EBC Brakes S4KR1115 S4 Kits Redstuff & USR Rotor for 08-17 Impreza WRX STI
Regular price $446.87 USDRegular priceUnit price / per$470.39 USDSale price $446.87 USDSale -
Competition Clutch Stage 2 Clutch Kit | 2005-2011 Subaru Legacy GT (15026-RK-2100)
Regular price $630.00 USDRegular priceUnit price / per$765.00 USDSale price $630.00 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.











