Ferrea Competition Plus Exhaust Valve Kit 28.5mm +0.5mm - BMW N54

Description Actual part may differ from image above. N54engines contain24 valves – 12 intake and 12 exhaust this Set contains 12+0.50mm 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 4.7mm – Stem Diameter 5.96mm.

– Valve Length 114.75mm – Valve Head Size 0.020″ / 0.5mm – Valve Head Diameter 28.5mm – Valve Type Exhaust – Valve Stem Diameter 5.96mm – Valve Material Stainless Steel, Super Alloy Replaces OEM Part # 11-34-7-553-775 / 11 34 7 553 775 / 11347553775.