For 4.0/5.0 Inch LML 6.6L Duramax Chevy GMC DPF Delete Race Pipe Exhaust Downpipe-Back(2011-2016)

2011, 2012, 2013, 2014, 2015 && 2015.5 2016 Chevy / GMC Duramax Diesel LML. Silverado and Sierra pickup trucks.

Crew cab short bed & crew cab long bed.

2015 or 2015.5?

2015 is a split year. The 2011-2015 downpipe is secured to the turbo-direct pipe using a V-band style clamp. The 2015.5-2016 uses a 3 bolt flange style connection. Be sure to visually verify the clamp style your truck is equipped with.

4.0 inches or 5.0 inches?
The choice of 4 inches and 5 inches is determined by customer needs. The price of 5 inches is higher, and the displacement and performance will be greatly improved.

With or without Muffler?
Removing the muffler will improve the performance of the engine, but it may cause a loud noise, which depends on the customer’s needs.

409 Stainless Steel Material
All of the Flashark DPF delete pipes are made of stainless steel 409, which has better durability than aluminized Steel.

Exhaust Material: T-409 stainless steel. Unlike T-304 Stainless its still magnetic. So if you testing to see if you actually got stainless; beware that a magnet will still stick to it.

Thickness: 2mm
Inlet Diameter: 4.0″, 5.0″

What is the DPF and is it worth doing a DPF Delete?

Most post-2007 diesel vehicles are fitted with a Diesel Particulate Filter (DPF) for emissions reasons, however, there are a few disadvantages to this device; including constant maintenance and repairs.

Because the DPF clogs up, it increases backpressure. Due to this pressure, the fuel flow is hugely disturbed and slowed down. Therefore, when you remove this filter, the fuel flows much easier and faster, increasing the overall fuel mileage.

Installation:
Install takes about 1hr with basic hand tools done on the ground of your driveway or garage. Quicker if you have automotive-style lift. Cutting may be required to fit shorter wheelbase bed/cab configurations. Clamps, hangers and hardware are included. You may have to re-use some factory hardware.
Tuner Required: Removal of the DPF, CAT, SCR, and/or DOC involves removing and eliminating emission-related sensors. A DPF delete capable tuner is required to prevent any check engine light or diagnostic trouble codes from setting.

Benefits: Expect to see a significant increase in fuel mileage. If your DPF is plugged up your probably averaging about 13-14 mpg. More or less depends on the severity of the restriction. After deleting the DPF/CAT expects to get a combined mileage of 18-19 mpg.

• It removes the need to service the DPF at regular intervals (cleaning, replacement)
• A DPF delete will remove the possibility of a DPF failure which could cause expensive diesel repairs
• Due to less exhaust backpressure, the DPF delete increases exhaust flow and therefore increases the performance of your motor!
• Paired with an ECU remap, the DPF delete is proven to increase power and torque for all vehicles