Supertech nitrided intake valves for Nissan GTI-R (RNN14) are supplied as a set of eight in +1mm oversize dimensions. The black nitrided finish provides enhanced surface hardness and wear resistance for high-performance valve trains, while the oversize sizing supports re-bored or modified cylinder head work common to rebuilds and performance engine maintenance on the GTI-R platform.
Supertech Nissan GTI-R / RNN14 Black Nitrided Intake Valve - +1mm Oversize - Set of 8