Yoshimura uitlaat Yamaha YZ450F ('23)

After over three years in development and testing the RS-12 is here! With all its details, the RS-12 takes the system to a new level: Improved performance gains, weight reduction and fit when compared to previous generation design

Developed and tested in the heat of over 24 months of factory level racing Aggressive, intelligently designed, asymmetrical shaped RS-12 profile allows maximized muffler volume RS-12 systems utilize precision machined joints : improved system life, fit and performance Carbon end cap covers inner cap mounted design improves durability Easy to install and remove sound inserts and spark arrestors Tapered muffler body inlet design of RS-12 enables the system to be pushed forward thus helping with weight centralization without sacrificing performance Proudly designed, developed and made in the USA