！Before installation, confirm that：
This high-performance component does not comply with the laws and regulations for highway driving and cannot be used on any vehicle that has been registered or certified for use on highways. This means that the component may only be suitable for racing cars or other off-road vehicles. If it is installed on vehicles driving on the highway, legal issues will be borne by oneself.
This is the installation process for the DP-0274: 2011-2015 Chevy/GMC Duramax LML 4" DPF & CAT Delete Pipe, provided for your reference during installation.
Step 1:
Remove all sensors from the exhaust pipe, loosen the flange that secures the drain pipe and DPF/exhaust pipe assembly.
Step 2:
Remove all factory plugs and ventilation holes from the diesel particulate filter, tie them to the truck frame or remove them from the clamp connection. Spray the hanger with WD-40, then pry off the hanger from the rubber bracket and remove the DPF from the truck.
Step 3:
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. (Note: Keep the inventory clip as it will be used with the new system).
2.To facilitate the disassembly of the downspout, remove the hanger attached to the gearbox and cut off the pipe inlet.
Step 4:
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 5:
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 6:
Connect the muffler replacement pipe #3 to the first section of the factory shaft pipe, and if necessary, cut it to a suitable length to fit the pipe.
For the EC/SB wheelbase (143 inches), you need to cut off the non expanding end of part number #2 by approximately 8 inches.
Step 7:
Starting from pipe #1, tighten the scroll belt clamp and continue tightening until the rear connection, while tightening the clamp. Check the gap.
This high-performance component does not comply with the laws and regulations for highway driving and cannot be used on any vehicle that has been registered or certified for use on highways. This means that the component may only be suitable for racing cars or other off-road vehicles. If it is installed on vehicles driving on the highway, legal issues will be borne by oneself.
This is the installation process for the DP-0274: 2011-2015 Chevy/GMC Duramax LML 4" DPF & CAT Delete Pipe, provided for your reference during installation.
Step 1:
Remove all sensors from the exhaust pipe, loosen the flange that secures the drain pipe and DPF/exhaust pipe assembly.
Step 2:
Remove all factory plugs and ventilation holes from the diesel particulate filter, tie them to the truck frame or remove them from the clamp connection. Spray the hanger with WD-40, then pry off the hanger from the rubber bracket and remove the DPF from the truck.
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. (Note: Keep the inventory clip as it will be used with the new system).
2.To facilitate the disassembly of the downspout, remove the hanger attached to the gearbox and cut off the pipe inlet.
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.
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 6:
Connect the muffler replacement pipe #3 to the first section of the factory shaft pipe, and if necessary, cut it to a suitable length to fit the pipe.
For the EC/SB wheelbase (143 inches), you need to cut off the non expanding end of part number #2 by approximately 8 inches.
Starting from pipe #1, tighten the scroll belt clamp and continue tightening until the rear connection, while tightening the clamp. Check the gap.
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