12-18 KAWASAKI ZX10R: Yoshimura Alpha Slip-On Exhaust (Street/Stainless Steel/Carbon Fiber/Carbon Fiber) Alpha has already proven itself on the racetrack where extensive development tests have been underway. Alpha's styling, fit and finish result from investments made in technology, combining decades of hands-on experience with the latest in digital design capabilities. One look at an Alpha system and you know it's something special! Style - Beautiful shape resulting from Tri-Oval design heritage. Quality - Unrivaled fit and finish due to improved production tolerances. Performance - Optimized for maximum flow and improved ground clearance.