2011-2015 DURAMAX 6.6L 4“ Dp-Back DPF Delete Race Pipe
Improve the performance of your motor!
Learn More
How it Installation?
Installation instructions

Step 1 :
Remove the strap clamp from the downpipe of the turbine. Loosen the bolts at the fixture to a sufficient degree, and then use a flat head screwdriver to pry the fixture out of the flange at three positions. remove the clamp.
Step 2 :
Place the metal hanger on the #1 downpipe into the upper hole of the hanger bracket or rubber insulation board, and install the downpipe using the factory turbine belt clamp. Loose clamping fixtures not only fix the pipeline in place but also allow it to move. Re fix the hanger to the transmission with bolts.


Step 3 :
Install pipe #2 Connect one end of the sloping surface to the tail end of the # 1 downpipe and tighten it loosely with a fixture. Place the hanger together into the OEM rubber hanger.
Step 4 :
Install the muffler replacement pipe #4 in front of the #6 axle pipe and the #7 tailpipe, and select the appropriate extension pipe #5 according to the wheelbase. Cut the extension pipe according to the needs of the vehicle body.


Step 5 :
Starting from pipeline #1, tighten the vortex band clamp and continue tightening until the rear connection is reached, checking the gap during tightening.
Step 6 :
1.Install the bracket. The M10 bolt will be screwed into the support bolt. Secure the transmission dipstick to the bracket using 1/4-20 bolts, nuts, and washers.
2.The bracket will hold the coolant hose connector in place.
