Supertech BMW M50/M52/S50/S52 Black Nitrided Exhaust Valve - Set of 12

These Supertech exhaust valves are black nitrided, a surface hardening process that makes the valve face tougher and more resistant to wear. This is a critical upgrade if you're rebuilding the top end of your BMW M50, M52, S50, or S52 engine. The nitriding process not only improves durability but also helps the valve seal better against the valve seat over time, which can lead to improved engine performance.

Each valve in this set of 12 is built to precise specifications, ensuring they fit right into your cylinder head. The black nitriding treatment is a notable detail that sets these valves apart, offering a solid improvement over stock components for engines that see regular use or are being built for more demanding applications. You can expect a well-built part that's ready to handle the heat and stress of the exhaust cycle.

When you're putting your engine back together, using well-made components like these valves makes a difference. They are designed to be a direct replacement for your original valves, simplifying the installation process for your mechanic.