Products

The GrimmSpeed engineering and manufacturing teams are known for designing and producing products that use high quality materials, offer perfect fi...

The GrimmSpeed engineering and manufacturing teams are known for designing and producing products that use high quality materials, offer perfect fi...

The GrimmSpeed shift boot retainer will hold your shift boot in place around the base of the shift knob. This is meant for Subaru 5 speed owners th...

GrimmSpeed Stealthbox Cold Air Intake System    Introduction Inspiration for the StealthBox Intake came from internal discussions about what we wan...

GrimmSpeed Stealthbox Cold Air Intake System  Introduction  Inspiration for the StealthBox Intake came from internal discussions about what we want...

GrimmSpeed Stealthbox Cold Air Intake System    Inspiration for the StealthBox Intake came from internal discussions about what we wanted from an i...

GrimmSpeed Stealthbox Cold Air Intake System   Introduction   Inspiration for the StealthBox Intake came from internal discussions about what we wa...

GrimmSpeed has released the new Strut Tower Brace for the BRZ, which they have spent months collecting numerous data and measuring the performance ...

GrimmSpeed has released the new Strut Tower Brace for the BRZ, which they have spent months collecting numerous data and measuring the performance ...

So, you probably already know that you want an intercooler with maximum cooling and minimum restriction, but when it comes to selecting the right ‘...

You probably already know that you want an intercooler with maximum cooling and minimum restriction, but when it comes to selecting the right ‘man ...

High-quality black silicone replacement TMIC Y-Pipe Hoses. Is your old 90 degree TMIC coupler all chewed up from years of use? Is it dirty and oil-...

High-quality red silicone replacement TMIC Y-Pipe Hoses. Is your old 90 degree TMIC coupler all chewed up from years of use? Is it dirty and oil-co...

So, you probably already know that you want an intercooler with maximum cooling and minimum restriction, but when it comes to selecting the right ‘...

You probably already know that you want an intercooler with maximum cooling and minimum restriction, but when it comes to selecting the right ‘man ...

Replace that undersized, plastic stock intercooler with a GrimmSpeed Top Mount Intercooler Kit, featuring cast aluminum end tanks, large bar and pl...

Adapt your 08-14 WRX TMIC for use with aftermarket and 'sti-style' turbos! Constructed using a 5-ply process and high quality silcione material, th...

Replace that undersized, plastic stock intercooler with a GrimmSpeed Top Mount Intercooler Kit, featuring cast aluminum end tanks, large bar and pl...

We all know how bad the OEM Subaru Top Mount Intercooler Gaskets are. They are the greatest source of leaks in the entire intake stream. Fear not, ...

High-quality replacement TMIC Y-Pipe Kit Just bought an aftermarket or STI TMIC that requires an STI Y-Pipe to fit? Want to replace your chewed up ...

High-quality replacement TMIC Y-Pipe Kit Just bought an aftermarket or STI TMIC that requires an STI Y-Pipe to fit? Want to replace your chewed up ...

Grimmspeed™ knows that many of you replace all of your exhaust gasket at the same time while installing aftermarket exhaust parts on your car. We'v...

Grimmspeed™ knows that many of you replace all of your exhaust gasket at the same time while installing aftermarket exhaust parts on your car. We'v...

The turbocharger is one of the hottest components in your engine bay and can have some really negative effects on its surroundings. As it gets red-...