If you're racing, split seconds can win races, that's why the AT2 Slip-On Exhausts from Yoshimura combine decades of hands-on experience with the latest in digital design capabilities to give you an exhaust unlike any other on the market. Yoshimura's engineers threw everything out, but the kitchen sink at the new AT2 or Alpha Taper 2 exhaust to give you a system that enhances both max horsepower and torque throughout the entire spectrum of your bike while providing substantial weight savings that drops almost half the weight of the stock system. And let us not forget about the sound! The raspy GP tone that the AT2 delivers is second to none and will have your heart revving for more!