KPMI Black Diamond? Oversized Exhaust Valve for Evo/Twin Cam '84-'04 * Part #20-20920

The KPMI Black Diamond? Oversized Exhaust Valve designed for Evo and Twin Cam engines from 1984 to 2004 offers superior durability and performance. Crafted with precision from high-quality stainless steel, this valve undergoes a proprietary German process that impregnates the surface to a depth of 0.002 inches, creating a robust layer that enhances wear resistance and reduces friction. The surface build-up of 0.0002 inches further contributes to its exceptional surface integrity, making it an ideal choice for demanding applications.

This Black Diamond? Valve features a lightweight, one-piece forging profile that ensures excellent flow characteristics, promoting optimal engine breathing and performance. The advanced surface treatment provides superior corrosion resistance compared to traditional chrome and nickel electrolysis plating, extending the lifespan of the valve even under high-stress conditions. Whether you're rebuilding or upgrading your engine, this oversized exhaust valve is engineered for strength, reliability, and improved engine efficiency.

Designed specifically for Evo and Twin Cam engines from 1984 to 2004, the KPMI Black Diamond? Oversized Exhaust Valve offers a perfect fit and seamless integration into your engine's valvetrain. Its robust construction and innovative surface treatment make it an excellent choice for performance enthusiasts and professional mechanics alike. Trust KPMI's expertise and experience to deliver high-quality components that meet or exceed OEM standards, ensuring your engine performs at its best for miles to come.