Products

DESCRIPTION This is the GrimmSpeed Radiator Hose Kit. These radiator hoses feature multi-layer silicone construction that is built to last while im...

DESCRIPTION The GrimmSpeed Black Radiator Hose Kit was manufactured using a 5-ply construction system with fiber reinforcement between each layer ...

DESCRIPTION The GrimmSpeed Radiator Shroud for the 2015-2021 Subaru WRX/STI is made from CNC laser cut and bent aluminum and covered in a very dura...

DESCRIPTION The GrimmSpeed StealthBox Cold Air Intake System is the result of countless invested hours in research and development to provide the p...

DESCRIPTION The GrimmSpeed StealthBox Cold Air Intake System is the result of countless invested hours in research and development to provide the p...

DESCRIPTION Engineered for real-world performance and durability, the GrimmSpeed Front Strut Bar adds critical front-end rigidity to your 2008–2014...

DESCRIPTION The GrimmSpeed Front Strut Bar for the 2022+ Subaru WRX delivers a precise blend of structural rigidity and clean design. Built with fo...

DESCRIPTION The Grimmspeed Top Mount Intercooler Y-Pipe Kit has been designed to work with factory or aftermarket top mount intercoolers. This is a...

DESCRIPTION The GrimmSpeed V2 Bypass Valve received many upgrades such as a redesigned the internal piston to eliminate the potential failure point...

DESCRIPTION The GrimmSpeed V2 Bypass Valve received many upgrades such as a redesigned the internal piston to eliminate the potential failure point...

DESCRIPTION The GrimmSpeed V2 Bypass Valve received many upgrades such as a redesigned the internal piston to eliminate the potential failure point...

DESCRIPTION The GrimmSpeed Dry-Con Air Filter is a high-performance direct-OEM replacement panel filter that has been designed to flow more air whi...

DESCRIPTION The GrimmSpeed Electronic Boost Control Solenoid is one of GrimmSpeed's most utilized upgrades due to the durability, simplicity of use...

DESCRIPTION Upgrade your Subaru’s performance with the GrimmSpeed Engine Mount for the 2002+ WRX and 2004+ STI. Designed as a direct replacement fo...

DESCRIPTION Upgrade your 2022+ Subaru WRX with the GrimmSpeed Engine Mount Kit, designed to replace the factory soft rubber mounts with a performan...

DESCRIPTION Upgrade your 2022+ Subaru WRX with the GrimmSpeed Engine Mount Kit, designed to replace factory soft rubber mounts with precision-engin...

The result of our hard work is one of the best looking, performing and most-durable header options in the Subaru aftermarket. The runners are CNC-b...

DESCRIPTION We know that many of you replace all of your exhaust gasket at the same time while installing aftermarket exhaust parts on your car. We...

DESCRIPTION At GrimmSpeed we have worked with endless amounts of aftermarket gaskets, none seem to work as well as the multi-layer steel OEM style ...

DESCRIPTION We know that many of you replace all of your exhaust gasket at the same time while installing aftermarket exhaust parts on your car. We...

DESCRIPTION These are the Grimmspeed Head to Exhaust Manifold Dual Port Gaskets. These particular gaskets see some of the highest temperatures when...

DESCRIPTION At GrimmSpeed we have worked with endless amounts of aftermarket gaskets, none seem to work as well as the multi-layer steel OEM style ...

DESCRIPTION To help keep chassis deflection at bay and to keep any large dents out of your front fascia we’re offering the GrimmSpeed Bumper Bar as...

DESCRIPTION The GrimmSpeed Front Mount Intercooler Kit for the 2008–2014 STI is engineered to deliver maximum cooling efficiency with minimal press...

DESCRIPTION The GrimmSpeed Front Mount Intercooler Kit for the 2008–2014 WRX is engineered to deliver exceptional cooling efficiency without sacrif...

DESCRIPTION The GrimmSpeed Front Mount Intercooler Kit from GrimmSpeed has been designed with a great balance of low-pressure drop and high-tempera...

DESCRIPTION The GrimmSpeed Front Mount Intercooler Kit from GrimmSpeed has been designed with a great balance of low-pressure drop and high-tempera...

DESCRIPTION It’s inevitable, you’ll eventually want to replace your OEM Subaru oil cap. Whether it's leaking, worn out, or just an eyesore, the Gri...

DESCRIPTION The GrimmSpeed Head Gaskets feature a multi-layer steel (MLS) construction, in which multiple grades are used to provide optimal surfac...

DESCRIPTION Feature-packed, these gaskets are a perfect fit for any engine build, from basic refresh to a high horsepower track monster. The GrimmS...

DESCRIPTION The biggest issue with the OEM struts that they prevent your hood from opening far enough to allow adequate space for working and light...

Tired of that ugly OEM hood prop blocking your view of that beautiful boxer engine? Always wanted to open your hood with just a couple fingers? Ann...

DESCRIPTION The GrimmSpeed Cold Air Intake is the result of countless hours, engineering, and testing to develop a cohesive cold air intake kit des...

DESCRIPTION We all know how bad (and expensive!) the OEM Subaru Top Mount Intercooler Gaskets can be. They are one of the greatest source of leaks ...

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

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...