2007-11 Dodge 6.7L FLO~PRO 4" Turbo Down Cat & DPF Delete Exhaust No Bung kit with Flanged connections and gasket. Only O2 bungs are replaced. Airlines and pyrometer fittings are not required and removed. Connects to factory muffler and tail pipe as well as most DPF Back Systems. Tuner required for proper operation. For off-road use only!