Get Huge Horsepower gains with our big 3 combos including a Fuel Customs Intake, Power Commander 6 Fuel Controller, Empire Industries Gen 2 Exhaust system for Yamaha YFZ 450R and X model. Fits 2010-2020 Bolt on huge power gains across the entire RPM range with our Full Exhaust System. Our unique step pipe design pulls every bit of horsepower out of your motor. We have the Best Horsepower producing Exhaust on the market! With our great sound and performance, you will be the envy of all your friends. Our pipes are built right here in the USA and constructed of mandrel bent, high-grade, 304 stainless steel. Tig welded 6061 aluminum silencer with billet end caps makes for easy repacking. If you’re not running 1 you’re probably behind 1 !!!! Billet silencer end caps are available in anodized, blue, black, and raw. Dyno proven Performance and Track tested. Chose the sticker color of your choice. Black, Red, Orange, Blue, Grey, Green, or Yellow. Bolt-on and you are ready to Rip!