Ferrea 6000 Series Competition Individual Exhaust 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 the material 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.

Specifications

• Intake
• Head Diameter: 37 mm
• Stem Diameter: 5.97 mm
• Overall Length: 104.6 mm
• Tip Length: 3.5 mm
• Reference: 19" S. Flo. Radius Groove. + 1 mm over size

Applications

• 2002-2007 Subaru WRX EJ20