Blow-Off and Diverter ValvesForced InductionGrimmSpeed
The days of sacrificing performance to leaky BPVs are over, because the long-awaited GrimmSpeed Bypass Valves are here! The long-awaited return of the GrimmSpeed...
The GrimmSpeed Turbocharger Program started by recognizing a need in the market for a robust, quick-spooling and high-performing turbo. Design began from the ground...
Red Stealthbox Air Intake Kit (060067) by GrimmSpeed. Inspiration for the StealthBox Intake came from internal discussions about what we wanted from an intake...
Black Stealthbox Air Intake Kit (060060) by GrimmSpeed. Inspiration for the StealthBox Intake came from internal discussions about what we wanted from an intake...
Raw HiFlow Exhaust Manifold Crosspipe (001001) by GrimmSpeed. Gaskets included. Subaru supplies its turbo owners with a tiny little crosspipe from the factory. 50%...
Blow-Off and Diverter ValvesForced InductionGrimmSpeed
The days of sacrificing performance to leaky BPVs are over, because the long-awaited GrimmSpeed Bypass Valves are here! The long-awaited return of the GrimmSpeed...
Blow-Off and Diverter ValvesForced InductionGrimmSpeed
The days of sacrificing performance to leaky BPVs are over, because the long-awaited GrimmSpeed Bypass Valves are here! The long-awaited return of the GrimmSpeed...
Blow-Off and Diverter ValvesForced InductionGrimmSpeed
The days of sacrificing performance to leaky BPVs are over, because the long-awaited GrimmSpeed Bypass Valves are here! The long-awaited return of the GrimmSpeed...
The GrimmSpeed Turbocharger Program started by recognizing a need in the market for a robust, quick-spooling and high-performing turbo. Design began from the ground...
Your factory crank pulley is responsible for transferring energy from your crankshaft to your water pump, a/c compressor and alternator. It does this by...
The GrimmSpeed Charge Pipe Kit replaces the restrictive stock plastic unit on the FA20-powered WRX with larger diameter CNC mandrel bent aluminum tubing and...
GrimmSpeed Intercoolers have set the gold standard of how a high performance heat exchanger should be crafted. Our intercoolers have always maintained the delicate...
Replace that undersized, plastic stock intercooler with a GrimmSpeed Top Mount Intercooler Kit, featuring cast aluminum end tanks, large bar and plate core and...
Constructed using a 5-ply process and high quality silcione material, this coupler will enable you to utilize a stock location, sti or aftermarket turbo...
There are two primary considerations in the design of an intercooler: maximum heat transfer and minimum pressure drop. Unfortunately, one causes the other, so...