Maximize the sound in your 2007.5-2010 Chevy/GMC 6.6L LMM Duramax with a Muffler Delete Pipe. Designed for a universal fitment, these pipes are made in a variety of lengths, diameters, and materials to offer an option for every application. A muffler delete pipe is easily installed in place of your existing muffler on most aftermarket exhaust systems and is simple clamped on both ends. For proper application and fitment measure your existing muffler and exhaust system diameter. Then match up the material grade to ensure you get a matching component for your exhaust. Shop XDP and find Muffler Delete Pipes from the top manufacturers like MBRP, AFE, Magnaflow, and more!