Leo Vince GP Corsa Slip-On Exhaust Kawasaki Ninja 300 The GP Corsa 4-Stroke Silencers of the LeoVince line, developed exclusively for the market of up to 250cc displacement 4-stroke motorcycles offer perfect balance between look, performance and price. The GP Corsa full-systems allow 250cc racers to shed more than 13 pounds on the CBR and over 9 pounds on the Ninja when replacing the stock exhaust. The silencer, completely manufactured in AISI 304 stainless steel, is a round design, developed too limit noise levels, improve the engine sound and guarentee the perfect flow of exhaust gas. Internally it is filled with high heat resistant fiberglass that guarantees reliability and long life. It is availablewith an aluminum or carbon casing, secured to the chassis by a stainless steel strap, lined with a vibration damping rubber gasket. The GP Corsa Offers CAD/CAM design for precise fit Designed after our Moto GP Moto 2 exhaust systems Significant weight savings over stock exhaust with the full system Slip-ons boost horsepower across RPM range (linear power) TIG-welded 304 Stainless Steel link pipes Sleeve options include Aluminum and Carbon Fiber Removable sound insert for more aggressive tone Machine-specific tuned to work with stock fuel settings Weight savings with Carbon Fiber Exhaust 2.83kg NOTE Please check local laws before purchasing a Leo Vince Exhaust . Some modifications may be prohibited in some states. For more information on Leo Vince Exhausts, please read our Leo Vince vs. Yoshimura article!