Skip to product information
1 of 5

DPF & CAT Delete Pipe | GM/Chevy 6.6L Duramax LML 2011-2016

DPF & CAT Delete Pipe | GM/Chevy 6.6L Duramax LML 2011-2016

Regular price $475.00 USD
Regular price Sale price $475.00 USD
Sale Sold out
Shipping calculated at checkout.
Choose Your Truck
Choose One
  • We Pay Shipping
  • Tech Support
  • Installation Guide
View full details

Collapsible content


✅ Best Selling Duramax DPF & CAT Delete Pipe

✅  High Quality T-409 Stainless Steel

✅ Mandrel Bent for optimal exhaust flow

✅ OEM Style Hangers & Clamps For Easy Installation

✅ Retains Factory Muffler

✅ Shipping Included In Price

Eliminate the following components 

  • Diesel Particulate Filter (DPF)
  • Catalytic Converter (CAT)


  • Compatible With All 2011-2016 Silverado/Sierra Duramax Pick-Up Models. Not Designed to fit Cab & Chassis models

  • MODEL YEARS : 2011,2012,2013,2014,2015,2016 6.6 CHEVY/DURAMAX


To note the difference between the 2015 and 2015.5

Please take a look at your down pipe connection.

V-Band Clamp Connection at down pipe : 2015 EARLY MODEL

3-Bolt Flange Connection at down pipe: 2015.5 LATER MODEL.


Not sure how to install this product? No problem.

We have your back.

We send you a step-by-step instruction guide and have a full time support staff to help you with any questions you may have on the installation.

If you run into issues, Open a Support Ticket Here


These pipes are designed for PICKUP MODELS.

Cab&Chassis models will require modifications to be made for the pipe to fit.

For more information, please reach out to our sales team

PHONE : (888) 830-2588 Ext 2




We will process your order within 1 business day.

Standard shipping will take 4-8 business days. Upgrading to Express shipping speed will take 3-4 Business days.

If the pipe is out of stock, we accept back orders, but keep in mind your order may take a few weeks to ship. 

* Note: Alaska, Hawaii and some Canadian locations will be subject to additional freight charges

All exhaust systems and DPF/CAT delete pipes are final sale and not eligible for a refund or return. However, if you receive a faulty product or the wrong product, we will send you a replacement.

Customer Reviews

Based on 4 reviews
Updating My Review to 5 Stars

I originally only gave the kit four stars because I was missing a clamp but I was just informed that they have already shipped me another one! Five stars for a great kit and great customer service.

High Quality Kit, Missing One Clamp

I'm writing this view because this kit only has two currently and I may be able to clear up some people's questions/doubts.

I'm only giving this four stars because you need three clamps and they only sent me two. You need the third clamp to clamp the end of the last section to what's left of your tailpipe after making the cut behind the DPF. The clamps they supply are very good. Unfortunately, I had to go to my local auto parts store and buy a U-Bolt clamp for that last connection. The U-Bolt clamp is not nearly as good as the clamps they provided and I have reached out to see if they can send me another one but have not heard back yet.

I bought the this kit along with the EFI Live tuner for my 2015.5 GMC Sierra. I was on the fence about whether to get the muffler or not because I was afraid it would be too loud without one but I also didn't want it to be as quiet as stock. I decided to go with no muffler and I'm glad I did because it's actually not that loud at all. Even on startup in the morning it's not loud enough to where you would need to worry about bothering your neighbors; its a low rumble. There's no drone, and with the windows up I don't even need to have the radio up any louder than I usually would. With that being said, you can definitely hear the turbo whistle and blow off which is what I was looking for! Do not go with the muffler unless you want the truck to be as quiet as it was stock.

The hardest part was removing the original system. If your truck is not lifted I recommend driving the front end up on ramps. You do need to make one cut on the original exhaust, in my case about 11 inches back from the DPF. If you want to get the cat out without dropping the transmission crossmember then you will need to make a second cut just before the cat. Once the old stuff was out, installing the new system was smooth sailing other than having to go buy a third clamp. I had no issues with the tune, but I will do a separate review for that.

David W.
Delete Pipe for 2013 Extended Cab Duramax

Good product but instructions are not the best. For an extended cab, it says to cut 2" back from the DPF but there's a bracket there. You have to trim it a hair further back and it works.

Easy install

Good quality & fitment.