Kelford +1mm Oversize Competition Plus Intake Valve Set of 8 - Subaru WRX/STI/FXT/LGT (EJ20/EJ25)

Ferrea Competition Plus Valves have built a reputation as the industry's most reliable extreme duty valve. To manufacture the valves we use special aerospace quality alloys, including the EV8-Z18, which provides high tensile strength. An exclusive two-step slow forging process ensures proper grain flow and virtually eliminates any damage to thematerial structure. The valves are then heat-treated and stress-relieved over a 48-hour period, which is the crucial base of our molecular integrity. These valves feature avionics-quality hard chrome along with a specially applied hard tip.

• Head Diameter: 37 mm
• Stem Diameter: 5.97 mm
• Overall Length: 104.6 mm
• Tip Length: 3.5 mm