Mid Muffler Removal Dodge Challenger Charger SRT Scatpack Hellcat 6.4 6.1 6.2 USA This listing is for 2 mandrel bent pipes and clamps to replace your mid mufflers. Just cut out that suitcase and clamp these in. The great thing about removing the mid mufflers is there is very little drone inside the vehicle. Due to Dodge putting an odd sized exhaust diameter on their vehicles, this is a 2.75" OD pipe with both ends flared to 2.75" ID. Your exhaust flow will be greatly improved as there is no packing and the pipes are mandrel bent.