Yamaha MT-09 FZ9 GPR Exhaust Systems Catalyzed Road Legal Deeptone Slipon Muffler Catalyzed road legal with removable DB killer. Necessary to cut the original header. Lightweight Aisi 304 Stainless Steel Deeptone silencer weighs only 1.6 Kg aproximate. All mounting hardware included for a perfect fitment. Joints\ mid pipes included where applicable. No modification needed. Produced using hand made craftsmanship and advanced TIG welding. Designed and Dyno-tested in GPR's factory. Comes with GPR's 2 years warranty.