Yoshimura Alpha Race Series styling, fit and finish result from investments made in technology, combining decades of hands on experience with the latest in digital design capabilities. This Yoshimura Alpha Race Series system not only drops over half the weight of the stock system, max horsepower is up 6.5% and max torque is up 3.1%. Plain and simple this system rocks, and the sound that is one of a kind Yoshimura! One look at a Yoshimura Alpha system and you know it's something special! More aggressive sound profile Beautiful shape resulting from our Tri-Oval design heritage Unrivaled fit and finish due to improved production tolerances Optimized for maximum flow and improved ground clearance Designed for durability and ease of service Made with Yoshimura's exclusive Works Finish Stainless Steel Header and Tail-pipe Yoshimura Works Finish takes on a unique coloring after it goes through a heat cycle on the motorcycle that looks much like those titanium works components our factory racers use Contemporary Satin/matte finish Uniform heat coloration Increased fatigue strength Increased scratch and stain resistance