The Akrapovic Racing System Is Designed For Riders Who Demand Maximum Performance. Racing System Is Lighter If Compared To Stock Exhaust System And Features Exceptional Production Quality, Hi-Tech Materials And Of Course Increased Engine Performance Combined With Pure Racing Sound Output. The Double-Flow Muffler Is A Unique Combination Of A Hexagonal Shape And A More Classic Rear Endcap, Finished With A Durable Titanium Muffler Sleeve And Robust Carbon-Fibre Clamp.For Perfect Performance, Throttle Response And Durability, ECU Remapping Is Recommended.FITMENT NOTICE: This Product Is Compatible With Original Honda Center Stand, Engine Guard And Pannier Stays.THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.