Supertech Performance VWIVN-1002S-10 Black Nitride Intake Valve Set for Audi RS3 TTRS 2.5L TFSI

These high-performance valves are manufactured from one piece of forged stainless steel for ultimate strength and durability.

Specifications:

• Head Diameter: 33.85mm (standard size)
• Stem Diameter: 5.98mm
• Overall Length: 103.90mm
• Material: Stainless Steel with Black Nitride coating
• Groove Type: Single groove design
• Quantity: 10 valves with 20 KPR-6S/7 keepers included

Black Nitride Coating Benefits:

• Microhardness exceeds base stainless steel material at 800HV minimum while maintaining ductility
• Smoother surface finish than chromed stems with reduced friction between stem and guide
• Harder valve seat surface for extended life with lead-free fuels, alcohol, and high-performance fuel mixtures
• Reduces power loss from valve-guide friction at high engine speeds

Supertech applies over 30 years of racing experience combined with state-of-the-art equipment including ultrasonic testing, x-rays, laser measurement, and computerized Finite Element Analysis (FEA) in the development of each valve. Must be used with KPR-6S/7 single groove valve keepers, which are included in this set.