DMR STAINLESS PRO MOD BIG INCH M8 BAGGER EXHAUST. Finally a pipe that will fit models with both DMR mid controls AND floorboards (floorboards models will require a 1" floorboard spacer, not included). No need to change pipes for your foot controls. These are for big inch motors. They start at 2" pipe at the head and step up to a 2-1/4", then go into a 4" muffler body with a straight through perforated muffler design, fully tig welded. Flat faced flange for big port heads, must use high temp RTV to seal, these DO NOT USE GASKETS. This is for big HORSEPOWER. Hidden springs on the back side that connect the collector to the primary tubes, small diameter 12pt exhaust stud nuts for easy installation, muffler bracket, and mounting hardware.  18mm O2 sensors and comes with reducers for 12mm O2 sensors. These are made to order. Dealers must email to order, dealer discounts are different on this exhaust. Proudly Made In USA!!