The Akrapovic Complete Stainless Header Set offers a wealth of benefits on top of the improvement to the looks and sound of the book. Being only constructed with the finest stainless steel, it is put together with great care and precision using modern technology. This exhaust system has a significant weight drop compared to OEM which results in a lighter, easier to handle bike.Ultra lightweight build, using premium stainless steel.Improved performance and looks.Easy to install, simply plug and play!The Akrapovic Complete Stainless Header Set is built with premium stainless steel using modern machining techniques, this brings you a top-of-the-line header set that improves everything from weight saving, to looks and sound. It is very easy to fit, simply plug and play! The exhaust produces an extra +3.5 hp @ 7,350 rpm of power and +4.9 lb-ft @ 2,650 rpm of torque. It is recommended when installing these headers that you remap the ECU to prevent the >>check engine light