11-15 GM Duramax Flo~Pro 4in. Downpipe Back Single w/Muffler - FLO864

11-14 GM Duramax 6.6L Flo~Pro 4in. Downpipe Back Single with Muffler. Off-Road System NO bungs. DPF Delete Tuner Required. *** IMPORTANT NOTE: The turbo direct pipe on some of the 2015 models has a 3-bolt flange instead of a V-band clamp. These kits will only fit models equipped with v-band clamp and will not work for trucks equipped with the 3-bolt flange off the turbo direct pipe!***