This race style muffler is designed to have exceptional sound, gain horsepower, and shed weight. Like the sound of sport bikes with tuned exhaust? Then you'll love this muffler! Caution; this muffler is loud! It increases throttle response and gains big low to high end power. All mufflers are jig built to ensure great fitment and performance. Installation is easy as it fits with factory mounting brackets. Engineered on our Superflow 902 dyno to provide 8-10 HP on stock machines. This exhaust is ceramic coated which acts as a thermal barrier to hold heat within the muffler.