Turbosmart Kompact vent to atmosphere blowoff valve kit

This little bypass valve is a tiny, lightweight little thing - great for packaging into tight spaces. But it's a quality unit that seals better than anything else we've tried.

Custom made for Flyin' Miata!

1 3/8" (34mm) inlet and outlet with all-metal construction. Included in our high boost kits with 3071 and larger turbos. This will also fit older FM turbo systems with steel intercooler piping. We use Turbosmart's lighter spring, as we've found that to be a better match to most Miata turbo kits. 

Intended for vent to atmosphere (BOV/blow-off valve) use. This means it should not be used on a car with a pre-BOV MAF. We do have a version designed for recirculated use and (typically) stock ECUs.