Ferrea Competition Plus Exhaust Valve Kit 30.9mm +1mm - VW/Audi 1.8T 20V

Description Actual part may differ from image above. 1.8Tengines contain 20 valves – 12 intake and 8 exhaust this Set contains 8 exhaust valves.

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 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. – Valve Tip Length 5mm – Stem Diameter 5.94mm.

– Valve Length 103.92mm – Valve Head Size 0.040″ / 1mm – Valve Head Diameter 30.9mm – Valve Type Exhaust – Valve Stem Diameter 5.94mm – Valve Material Stainless Steel, Super Alloy – Valve Face Dish Replaces OEM Part # 058-109-611-E / 058109611 E / 058 109 611 E / 058109611E.