Oval mufflers plus catalytic converter with EC-type approval and removable dB killer for racing. The Sebring sound and design studio was able to achieve the required volume approval while retaining the unbelievable sound. Each muffler model has a dedicated screw mounting (no clamp!!). Available as a slip-on with linking pipe or a bolt-on to screw onto the original flange. Stainless steel build up to the muffler shell.