Mazda Miata BP-056 Stock Dia. Competition Series Exhaust Valve

Our race series valve is forged from an EV-8 alloy then heat treated and stress relieved with a solution style heat treat process for better control though and through. 

This process produces a better overall product with proper material grain flow that results in superior longevity & reliability in today's demanding race engines.

Quality control is our main objective!

Mazda Miata BP-056 Stock Dia. Exhaust Valve

Head Dia. - 28 MM

OAL - 101.55 MM 

Stem Dia. - 6 MM

Tip Length - 3.45 MM

Material - EV8/Z18 Stainless Steel

Lightweight Series