This new complete exhaust system is hand made using top quality material, stainless steel headers,billet end cap and carbon fiber heat shield. Features 2 into one 50mm. headers that go into one new conical concept mufflers using a unique new technology to kill decibels without loss of power. Maintains a nice and deep sound that is not annoying, the end result is a master piece of beauty and a real technical jewel. This completely handmade system weight only 5.228 kg. including bracket and all hardware, plus offers more performance than any other exhaust built so far for the XR series, not homologated for legal road use. To mount this kit is necessary to have installed the riser block included on the kit. We stronly recommand to reprogram your ECM for this product. IT IS NOT ROAD LEGAL