AFE 49-44067 LARGE BORE HD 4" RACE PIPE 2015.5-2016 GM 6.6L DURAMAX LML
The AFE 49-44067 Large Bore HD 4" Race Pipe for your 2015.5-2016 GM 6.6L Duramax LML is constructed from 4" mandrel bent stainless steel for maximum flow and increased horsepower and torque. The Race pipe is designed with a unique tapered flange to fit the flanged down pipes found on models built after July 2014.
AFE 49-44066 LARGE BORE HD 4" RACE PIPE 2011-2015 GM 6.6L DURAMAX LML
The AFE 49-44066 Large Bore HD 4" Race Pipe for your 2011-2015 GM 6.6L Duramax LML is constructed from mandrel-bent stainless steel tubing for maximum flow, increased horsepower, increased torque and lower EGT's. LARGE BORE HD exhaust race pipes are the perfect combination of performance, fit and value. Uses OE mounting hangers for secure mounting and hassle-free installation. The factory exhaust system will require to be cut prior to installation.