GFB Respons Dual Port Variable BOV Blow Off Valve Turbo Down Pipes/Front Pipes All of our products represent

All of our products represent the highest quality and are engineered for maximum power

Free-air calibration may correct drift as a sensor ages

ALTA control arms are adjustable for fine tuning of camber and toe without having to remove and install the linkage

All Subaru EZ Engines with Manual Transmission

GFB Respons Dual Port Variable BOV Blow Off Valve Turbo Down Pipes/Front Pipes All of our products representRESPONS TMS: SMARTER THAN A DUAL PORT BOV! Atmosphere venting BOV won't work on your car? Try a GFB Respons; you'll be surprised! On the surface, it may look like just another dual port blow off valve, but the Respons is actually much more than that. Featuring GFB's patented venting bias adjustment system, the Respons allows you to precisely control how much air vents from each of the two outlets. Why is this so important? Two key reasons: Adjust how