Ferrea Exhaust Valve Competition Plus Nissan Skyline

Ferrea Competition Plus Valves are manufactured from special aerospace quality alloys, including the EV8-Z18 which provides high tensile strength. An exclusive two-step slow forging process ensure proper grain flow and virtually eliminates any damage to the material structure. The valves are heat-treated and stress-relieved over a 48-hour period, which is the crucial base of our molecular integrity. They also feature avionics-quality hard chrome along with a specially applied hard tip.