Chrome universal muffler - traditional trumpet style Universal mounting bracket in side - undrilled so you can adjust to length. Designed to fit over the exhaust end of your header pipe - Comes with 3 collars to adjust inlet size - will fit over 37mm od / 40mm od / 43mm / 45mm od header pipes A little muffler putty sometimes helpful!!! 50mm chrome clamp for header pipe / mufflet joint Overall length is 500mm There are no noise readings on this pipe so it may not meet noise levels in some jurisdictions.