Rotax  exhaust muffler  ultralight Aircraft , powered parachute , snowmobile , Go Kart ECt , Its brand new bought many years ago for use  on  Rotax 277 , 377 , 447 , 503 engine as used on Ultralight aircraft     brand new  never mounted   , what you see in the picture is EXACTLY what you will receive   , nothing more nothing less  , Free shipping is at the BUY IT NOW price only , In other words if I accept your lower offer you will pay the shipping of your choice   Thanks for looking