Exhaust valves and springs (steel kit) YAMAHA

If your Yamaha engine is struggling with a drop in performance or unstable running, it's time to replace the exhaust valves and springs. This kit from the Dutch manufacturer Prox Racing Parts brings the solution directly to you. Prox specializes in manufacturing spare parts that meet the strictest OEM standards, so you can rely on a perfect fit and reliability. Made from durable steel, these valves and springs are designed to withstand the demanding conditions of motocross and enduro riding. With this kit, you get everything needed to restore optimal compression and exhaust gas flow, which directly translates into better performance and responsiveness of your machine. You won't have to deal with any compromises, just pure performance.