2008-2014 Subaru STI Engine

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 This is the GrimmSpeed Air Oil Separator. If you're familiar with modifying your vehicle, then you will know the importance of an air/o...

DESCRIPTION GrimmSpeed believes that there has not been any major changes to the unequal exhaust manifold in some time, and this is due to the tigh...

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

DESCRIPTION The Invidia Up-Pipe is a high-performance upgrade for Subaru models, designed to replace the restrictive and failure-prone factory up-p...

DESCRIPTION The Invidia Up-Pipe - No EGT Bung is a premium upgrade for Subaru owners looking to improve exhaust flow and turbo efficiency. Designed...

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

DESCRIPTION The GrimmSpeed Ceramic Coated 2 Bolt Up-Pipe has been designed to be a high-performance direct replacement for your factory up-pipe to ...

The Hyper V-Core Series is the newest to the Koyorad | Koyo All Aluminum Racing Radiator line up. An engine's cooling system in many newer vehicles...

Adjustable relief pressure and flow control makes fine-tuning on the fly simple and quick with the PERRIN BOV/BPV. HIGH FLOW With large 1.225" inle...

The PERRIN High Flow Washable Replacement Air Filter is the last filter you will ever need to buy. Not only is it washable, but it will increase ho...

Don't leave your turbo uncovered! Protect your intercooler from radiant heat from your turbo with the PERRIN Turbo Heat Shield!

Dress up your engine bay while preventing leaks and spills from your master cylinder reservoir with the PERRIN Brake Reservoir Cozy.  Easy Installa...

On this page, you are looking at the Tomei ARMS MX7760 Single Scroll Turbocharger. This is Tomei's latest design that features a new CNC billet com...

On this page, you are looking at the Tomei ARMS MX7960 Turbocharger. This is Tomei's latest design that features a new CNC billet compressor wheel....

This is the new Tomei BX-Series Ball-Bearing Turbocharger. The BX-Series is Tomei's latest ball-bearing turbocharger example that features the late...

On this page, you are looking at the Tomei ARMS MX8265 Single Scroll Turbocharger. This is Tomei's latest design that features a new CNC billet com...

DESCRIPTION We designed this up pipe using our in-house FARO Arm along with the latest and greatest Solidworks CAD Software. This assures that we c...

DESCRIPTION This is the GrimmSpeed Top Mount Intercooler. Once you start performing modifications that add more horsepower and more boost, eventual...

DESCRIPTION GrimmSpeed's new Overtake BB500 Turbocharger is another powerful turbocharger designed by GrimmSpeed. The Overtake Ball-Bearing 500-Ser...