Supertech Performance BMIVN-1009-8 Black Nitrided Intake Valve Set BMW S14 38.5mm 8-Pack

These racing valves are manufactured from premium stainless steel alloy specifically selected for high-temperature durability and thermal fatigue resistance.

Key Features:

• Black nitride coating provides harder surface and smoother finish, reducing friction and extending valve life
• Superfinished valve stem reduces surface roughness to 1/3 of chrome-coated valves for unsurpassed performance
• Strict dimensional tolerances ensure superior sealing, optimal performance and easier installation
• Optimized valve angles including back cut and undercut design for maximum high flow rates
• One-piece forged construction maintains proper material grain flow for strength

Supertech applies over 30 years of experience combined with state-of-the-art testing equipment including ultrasonic tests, x-rays, and computerized Finite Element Analysis (FEA) to ensure industry-leading reliability. Ideal for road racing, drag racing, and high-performance street applications requiring upgraded valvetrain components.