All Balls Racing 04-09 Yamaha YFZ450 Counter Shaft Seal Kit 2018-alfa-romeo-stelvio-quadrifoglio-esi6482032 The closed-cell urethane foam jounce

The closed-cell urethane foam jounce bumper inside the ULTIMATE air springs provide a cushion of air that absorbs shock

flexible bellows coupling

This cat replacement is designed as a one piece system that retains the factory O2 sensor and hanger locations for a direct bolt-on and go solution

Port plug for secondary port included

Three Position Settings

All Balls Racing 04-09 Yamaha YFZ450 Counter Shaft Seal Kit 2018-alfa-romeo-stelvio-quadrifoglio-esi6482032 The closed-cell urethane foam jounceKit comes with a hardened steel bushing, an upgraded seal, an O ring (where applicable), as well as a snap ring or lock washer (where applicable) Kit comes with a hardened steel bushing, an upgraded seal, an O ring (where applicable), as well as a snap ring or lock washer (where applicable)