PPE 3 Inch Stainless Steel Down Pipe For 2011-2015 GMC/Chevy 6.6L LML Duramax automatic internal components equipped with high quality sheathing

equipped with high quality sheathing

(1) Quiet Tone Muffler

They can either be mounted below or above the center mount

Top-mounted strut spacers lift front end without spring disassembly

7L 24-Valve Cummins

PPE 3 Inch Stainless Steel Down Pipe For 2011-2015 GMC/Chevy 6.6L LML Duramax automatic internal components equipped with high quality sheathingThe factory LML down pipe makes an abrupt directional change immediately after the turbine flange, which restricts exhaust flow and impedes performance. The indentations in the piping can further impede exhaust flow. Upgrade your Duramax with the PPE Free Flow Downpipe and eliminate the rusted, restrictive factory design. The PPE Down Pipe highlights unrestricted 3 inch diameter flow path all along, fully machined and TIG welded upper and lower