2ZR High Performance Exhaust Valves Oversized +1mm Intake temperature while black anodizing is more

while black anodizing is more prone to discolouring under heat (> 392F / 200C)

Vibration is reduced as the rotor lateral run-out is kept within 0

86mm) in thickness

It fits perfectly with the standard exhaust and heat shield

2ZR High Performance Exhaust Valves Oversized +1mm Intake temperature while black anodizing is moreMade for us by a a renowned UK valve manufacturer. Oversized for increased flow , cylindernder head will reqire new bigger seats. Sold as a set of 8. They are made of high performance steel with Stellite seat. An additional plasma nitrided layer and super polishing make them the first choice for your engine build. A flat design and slightly smaller diameter of stem improve the flow and performance of your engine. Intake oversized valves are available