GSC Power-Division Toyota 2JZ - Intake Valve Guide Set. Each valve guide is made from true C67410 manganese bronze CNCed on a dedicated precision turning center. GSC holds only the tightest tolerances in the industry with one of the best quality control around. Set of 12.
Supertech valve guides are precision-machined from high quality Manganese Bronze material. Each valve guide is designed to be used in combination with their low friction black nitrided valves
