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Larger intake and exhaust ports
2013-2021 MSX125 Grom
High performance
Shot-peened solid rollers and chromized pins help to extend service life
Yoshimura is proud to play a role in the continuing development of UTV performance and racing
Boyesen Factory Ignition Cover Color:Black Larger intake and exhaust portsElevate your bike's performance with the Boyesen Factory Ignition Cover. Precision cast from high quality aluminum for perfect sealing against dirt and moisture. This premium cover includes gaskets and delivers that professional "WORKS" look riders crave. Designed for durability and performance, it's the essential upgrade your XR CRF50, XR CRF70, or Z50 deserves.