DP-0301 2015.5-2016 6.6L Duramax 5" Dp-back DPF Delete kit

2015.5-2016 DURAMAX 6.6L 5“ Dp-Back DPF Delete Race Pipe

Improve the performance of your motor!

0301.png__PID:61fe9870-23b5-4e47-89f1-45bce9106251

How it Installation?

Installation instructions

0276 1.png__PID:d76f5809-7da0-4774-8b17-e9e6819f0984

Step 1 :

Loosen the flange that secures the downpipe and DPF/exhaust pipe assembly. 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.

Step 2 :

Remove the clamp from the downpipe of the turbine. Loosen the bolts on 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),

0301 4.jpg__PID:5da599d5-249c-489c-b94b-185835f26355

0300 3.jpg__PID:b0a09421-bb97-46b7-a391-b60124843ef7

Step 3 :

Place the metal hanger on the downpipe #1 into the upper hole of the hanger bracket or rubber insulation board removed in step 5 above.Install the downpipe using the factory produced turbine belt clamp. Clamping fixture Down, so it can hold the pipe in place, but the pipe can still move. Re fix the hanger bracket to the transmission with bolts.

Step 4 :

Install tube #2 and the required extension tube based on the wheelbase length.Install mufflers and clamp hangers on the shaft neck and exhaust pipe，Insert a metal hanger onto the rubber insulator.

0303 12.jpg__PID:b6012484-3ef7-4043-a243-bc2fba391a45

0301 6.jpg__PID:c043a243-bc2f-4a39-9a45-283f0eabf41e

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.

0092 6.jpg__PID:69d53a21-0439-4884-b4a8-7ec1a71ab9cd

TruckTok 2015.5-2016 6.6L GM Duramax LML 5

TruckTok 2015.5-2016 6.6L GM Duramax LML 5" Downpipe Back DPF Delete Race Pipe

$659.00

FITMENT

2015.5-2016 6.6L Silverado & Sierra Duramax 2500HD/3500HD LML engine models with the 3-bolt flange.
Does NOT Fit 2011-2015.5 model with the V-Band Clamp style.
Please physically inspect underneath your truck to verify your turbo discharge style before purchasing!

DESCRIPTION

Product Overview

Late-production 2015.5-2016 LML trucks have hit their peak emissions failure window. Soot-choked DPFs, blown DEF heaters, and failed sensors frequently trigger Limp Mode while tanking fuel economy to 13-14 MPG.
Furthermore, towing with these restrictions traps intense backpressure, spiking EGTs past 1,300°F and straining the turbo. At this age, mid-section patch pipes aren't enough, as the stock 10-year-old tailpipes and hangers are often heavily rusted and ready to snap.

Key Features

Rugged T-409 Stainless Steel Build: Manufactured from industrial-grade T-409 SS, perfectly optimized to expand and contract under intense thermal cycling without cracking or warping.
The Deepest Acoustic V8 Growl: The huge 5" cross-sectional area acts like an acoustic megaphone, producing an exceptionally deep, deep-tone rumble that sets your truck apart from standard 4" pipes.
Substantial EGT & Heat Reduction: Instantly drops exhaust backpressure, allowing scorching gases to exit the motor rapidly, dropping EGTs significantly under heavy sustained towing loads.
Precision 3-Bolt Flange Receiver: Equipped with a heavy-duty, CNC machine-cut 3-bolt flange welded at the inlet, guaranteeing a direct, leak-free bolt-on connection to your 15.5-16 factory downpipe output.

FAQ

Q: How do I know if I have the 3-bolt or V-band flange?

A: Look at the connection between the downpipe and turbo. Early 11-15.5 models feature a V-band clamp (a single circular band with one tightening bolt). Late 15.5-16 models feature a heavy-duty 3-bolt flange (three separate bolts arranged in a triangular pattern).

Q: How loud is it with a muffler?

A: It stays deeper and richer than the factory sound note, but is well-controlled enough for daily driving. The performance muffler effectively takes the edge off harsh highway cab vibrations without killing your V8 tone.

Q: Should I do the EGR delete at the same time?

A: Yes, highly recommended. Since you will already have the factory exhaust dropped, accessing the back of the engine bay is much easier. You can seamlessly pair this install with our LML EGR Delete Kit or full Up-Pipe + EGR Kit .

Q: Will 5" hang lower than stock?

A: No, the system is designed to closely mirror the factory routing layout. Ground clearance remains highly similar to stock, making it perfect for factory height or lifted setups. For heavily lowered trucks, the 4" version stays slightly closer to the frame rail.

View Details