Slip-Ons Represent The First Step In The Exhaust System Tuning Process, And They Offer A Great Balance Between Price And Performance. Change The Nature Of Your Bike By Adding More Power, Improved Performance, And The Unique Akrapovic Sound. Everything Packed In Stylishly Designed Slip-On Exhaust Systems. The Result Of Taking Design Very Seriously Is A Beautifully Crafted Exhaust System With A Titanium Muffler Outer Sleeve And Plenty Of Carbon Fiber Parts. Race-Proven Materials.With The Muffler Please Choose Mandatory Link Pipe Or The Evolution Header.THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.