Grimmspeed V2 Bypass Valve RED - 04-21 STI, 02-07 WRX, 04-08 FXT - 126032RED Hard Line Adapters The black kit is our

The black kit is our most popular kit for its stealthy look but they both get the job done perfect

Honda J ('98-'03) FIC's Data Matched high performance fuel injectors featuring high impedance Bosch core

If you've got an STI

we were able to start identifying key areas of improvement: correctly sized and consistent exhaust runners that are more equal length

a lower hose and four stainless steel high-torque clamps from BREEZE

Grimmspeed V2 Bypass Valve RED - 04-21 STI, 02-07 WRX, 04-08 FXT - 126032RED Hard Line Adapters The black kit is ourThe 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 Bypass Valves is here! Our valves have been a highly sought after product, but due to the intensive assembly process, it has been hard to keep them on the shelves, which in turn causes frustration among our customers. To address this issue, our team has worked diligently to redesign the BPV