Single Exhaust Valve
Compatible with: Mazda 1.6L DOHC 16V ZM (Enginetech EM4409)
Nominal Stem Diameter: 6.00 mm
ET Stem Diameter: 0.2346 inches
Standard Head Diameter: 1.015 inches
ET Head Diameter:...
Single Exhaust Valve
Compatible with: Subaru 2.0L DOHC 16V Turbo (Enginetech EM4425)
Nominal Stem Diameter: 6.00 mm
ET Stem Diameter: 0.2340 inches
Standard Head Diameter: 1.262 inches
ET Head...