The Go Fast Bits Soft Blow Off Valve Spring is available for those of you who might have a too aggressive blow off valve spring for their application. This is a great option for those of you who acquired a vehicle with a pre-existing blow off valve, or maybe you might have changed your setup and need the blow off valve to work with lower boost levels. Whatever the case, this blow off valve spring is available for separate purchase for those of you who want to utilize their existing Go Fast Bits Blow Off Valve.

Fits all Mach 2, Respons TMS, and Deceptor Pro II valves.