Overview Reviews Product Description This Mach FORCE Xp exhaust system is constructed of 5" mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's. Product Videos Custom Field Product Reviews Write a Review Write a Review × aFe Power aFe Power Large Bore-HD 5" DPF-Back Exhaust for 15-16 Ford Diesel 6.7L Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *