Products

DESCRIPTION The Fuel Injector Clinic 1200cc Top Feed Injectors for the 2002-2014 WRX and 2007-2021 STI deliver the added fueling capacity needed fo...

DESCRIPTION These Fuel Injector Clinic 1200cc Top Feed Converted Injectors are designed specifically for 2004-2006 STI models running original tumb...

DESCRIPTION These Fuel Injector Clinic 1440cc Top Feed Converted Injectors are designed for 2004-2006 STI models equipped with original tumblers an...

DESCRIPTION The Fuel Injector Clinic 1440cc Top Feed Injectors for the 2002-2014 WRX and 2007-2021 STI deliver a major increase in fuel capacity, m...

DESCRIPTION The Fuel Injector Clinic 1650cc Top Feed Injectors for the 2002-2014 WRX and 2007-2021 STI provide the fuel delivery needed for high-po...

DESCRIPTION These Fuel Injector Clinic 1650cc Top Feed Converted Injectors are built for 2004-2006 STI models running original tumblers with an FIC...

DESCRIPTION The Fuel Injector Clinic 2150cc Top Feed Injectors for the 2002-2014 WRX and 2007-2021 STI are built for high-horsepower setups that de...

DESCRIPTION These 2150cc Fuel Injector Clinic Top Feed Converted Injectors are built for the 2004-2006 STI running original tumblers with the FIC t...

DESCRIPTION These Fuel Injector Clinic 650cc Top Feed Injectors are built for the 2002-2014 WRX and 2007-2021 STI, offering a dependable increase i...

DESCRIPTION These Fuel Injector Clinic 650cc Top Feed Converted Injectors are made for 2004-2006 STI models running original tumblers with an FIC t...

DESCRIPTION The Fuel Injector Clinic 775cc Top Feed Injectors for the 2002-2014 WRX and 2007-2021 STI deliver a solid step up in fueling capacity f...

DESCRIPTION These Fuel Injector Clinic 775cc Top Feed Converted Injectors are designed for 2004-2006 STI models running original tumblers with an F...

The Girodisc system is a direct replacement for the OE disc. No modifications are necessary. The disc will bolt directly to the car and work with O...

Sold in pair The Girodisc system is a direct replacement for the OE disc. No modifications are necessary. The disc will bolt directly to the car an...

Need new rings for your Girodisc 2pc rotors? We got them. Rings come complete with all new hardware and full instructions for re-assembly; but if y...

Need new rings for your Girodisc 2pc rotors? We got them. Rings come complete with all new hardware and full instructions for re-assembly; but if y...

DESCRIPTION Aftermarket exhaust systems are often larger in diameter than factory systems. As a result, they have a tighter fit below your car. Wit...

DESCRIPTION Aftermarket exhaust systems are often larger in diameter than factory systems. As a result, they have a tighter fit below your car. Wit...

A perfect solution to pesky problems - it's what you expect from GrimmSpeed! Exhaust leaks seem to be an all-too-common issue with most modded Suba...

The Original Direct-Fit BCS for turbo Subarus. GrimmSpeed is proud to provide the most complete and easy to use 3-Port Electronic Boost Solenoid fo...

The stock single-piston caliper found on most Subaru platforms gets the job done — but it wasn’t designed for the kind of aggressive driving, track...

The stock single-piston caliper found on most Subaru platforms gets the job done — but it wasn’t designed for the kind of aggressive driving, track...

The GrimmSpeed 6-Speed STI Shifter Bushing Kit replaces the factory rubber shifter bushings with higher durability polyurethane components designed...

DESCRIPTION This top-of-the-line intercooler boasts a range of innovative features, including a CNC milled billet aluminum construction and a sleek...

DESCRIPTION This top-of-the-line intercooler boasts a range of innovative features, including a CNC milled billet aluminum construction and a sleek...

DESCRIPTION The GrimmSpeed Air/Oil Separator for turbocharged Subaru models has a unique design that allows you to maintain your PCV Valve while se...

DESCRIPTION The GrimmSpeed Air/Oil Separator for turbocharged Subaru models has a unique design that allows you to maintain your PCV Valve while se...

DESCRIPTION Tired of being teased for your corroded alternator and boring engine bay? Step your Alternator Cover game up; GrimmSpeed has just what ...

DESCRIPTION The GrimmSpeed Charge Pipe Kit for the 2022+ WRX is a direct replacement for the factory Subaru piping. This kit was crafted from durab...

DESCRIPTION The standard GrimmSpeed Shift Knob is one of the most popular in the Subaru aftermarket for a reason. They are the perfect mixture of r...

DESCRIPTION We decided on a subtle design for this cover that mimics the “vent” styling on our matching GrimmSpeed Alternator Cover. Is it made fro...

DESCRIPTION The GrimmSpeed Engine Bay Cap Set completely replaces the OEM yellow caps under the hood of all 2008-21 WRX and STI models, as well as ...