2015-2021 WRX STI Mods

DESCRIPTION MSP spent lots of time developing the carbon fiber LED mirror covers to have perfect fitment. These covers are engineered with a durabl...

DESCRIPTION The MSP Carbon Fiber Mirror Covers are a great addition to any WRX/STI. They add a great contrast and fit perfect! MSP products are mad...

DESCRIPTION The MSP Carbon Fiber Gas Cap Cover was designed to fit right over your factory gas cap. This easy and affordable modification is crafte...

DESCRIPTION MSP has released their signature rain guards in a gloss black finish. These really are a show stopper and are super unique feature for ...

DESCRIPTION The MSP Under glow kit is exactly what you would expect and more! This kit comes with 3M adhesive pre-applied for an easy install. For...

Here, you are looking at the Corsa Performance 3-Inch Dual Rear Exit Catback Exhaust System with Twin 3.5-inch Tips. This exhaust system has been d...

Here, you are looking at the Corsa Performance 3-Inch Dual Rear Exit Catback Exhaust System with Twin 3.5-inch Tips. This exhaust system has been d...

The TurboXS 2015+ Subaru WRX Front Mount Intercooler Kit might be the single best modification you can do to your 2015-2016 WRX.  One of the bigges...

The TurboXS 2015+ Subaru WRX Front Mount Intercooler Kit might be the single best modification you can do to your 2015-2016 WRX.  One of the bigges...

The TurboXS 2015+ Subaru WRX Front Mount Intercooler Kit might be the single best modification you can do to your 2015-2016 WRX.  One of the bigges...

SB5-HDG6 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp...

SB11-HDSS kit features ACT's most popular Heavy Duty pressure plate and most popular street disc. ACT Heavy Duty pressure plates use exclusive diap...

SB5-HDR6 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp...

SB11-HDG6 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clam...

SB11-HDR4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clam...

SB11-HDR6 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clam...

SB11-HDG4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clam...

SPECS: Patent-pending design  Chromoly-steel construction Makes for a great upgrade to the traditional two-piece wedge collar and wire ring design...

PB1004 is a high quality replacement bushing or bearing that is placed in the end of the crankshaft or in the center of the flywheel, depending on ...

600475 is a Prolite flywheel, which is ACT's lighter flywheel offering with lowest inertia. Prolite flywheels are designed for best throttle respon...

ACT flywheels are lighter, stronger and safer than stock cast flywheels to meet the needs of both enthusiast and hard core racer. Material is prope...

ACT flywheels are lighter, stronger and safer than stock cast flywheels to meet the needs of both enthusiast and hard core racer. Material is prope...

Recommended for high horsepower street or race use Moderate to heavy pedal effort, aggressive engagement, OE to mild gear rattle Rated at 650 ft/lb...

SB11-XTSS kit features an Xtreme pressure plate for the most demanding driver. ACT Xtreme pressure plates use exclusive diaphragm design to increas...

SB11-XTR4 kit features an Xtreme pressure plate for the most demanding driver. ACT Xtreme pressure plates use exclusive diaphragm design to increas...

SB11-XTR6 kit features an Xtreme pressure plate for the most demanding driver. ACT Xtreme pressure plates use exclusive diaphragm design to increas...

SB11-XTG4 kit features an Xtreme pressure plate for the most demanding driver. ACT Xtreme pressure plates use exclusive diaphragm design to increas...