Choose Your Tuning

The MPVI2 is the industry standard for tuning your 6.6L L5P. If you're looking for our recommendation for tuning your truck, this is it. 

Please be sure to input your VIN and Modifications at the bottom of the page so we can have the custom tuning written as soon as possible.

2017-2019 Duramax CCS Custom Tune Package (CCS-L5P)-Tuning-Coopers Custom Solutions-Dirty Diesel Customs

CCS Tuning Package

Package Includes:

  • HP Tuners MPVI2
  • HP Tuners L5P ECM (E41) & 8 Credits
  • Single or 5 Custom Tune Files
  • Canbus Harness (NOX Plugs)

Optional TCM Addon:

TCM Tuning is optional but highly recommended if you have the T87 TCM. Each TCM File will be built to suit and will include line pressure improvements to hold all the extra power that is made.

  • HP Tuners TCM
  • TCM Tune Files & 4 Credits

Features:

  • Has the fastest scanning, logging, and data transmission rates to ensure you capture everything

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Add EGR Delete

When purchasing delete tunes, the new programming will automatically close the existing EGR valve to prevent any gasses from being recirculated. This means you don't need to fully delete your EGR in order to reap the benefits. However, with this option, you are relying on the OEM EGR valve to maintain a seal that can cause issues if it starts to leak.

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2017-2019 Duramax EGR Solution Package (L5P-EGR-A000)-EGR Delete-Dirty Diesel Customs-L5P-EGR-A000-Dirty Diesel Customs

2017-2019 Duramax EGR Delete

Housekeeping

Clears up room in your engine bay by fully removing the problematic EGR system, giving you that clean factory-look install that is topped off with our very own Dirty logo.


Increased Performance

Reduces carbon deposits in the intake which in turn decreases restriction, lowers EGT's, and gains a quicker turbine spool.


Canadian Made

Proudly made in Canada! 

 

Long Lasting

This kit has been made from CNC machined 6061 T6 Aluminum, T304 Stainless Steel, and then anodized to ensure long lasting quality.

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These cannot be shipped to the USA.
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Add 3.5" Downpipe

We recommend adding the 3.5" L5P Downpipe to replace your crushed factory downpipe and DOC. It connects to your OE turbo outlet flange and mates with your OEM or aftermarket Race Exhaust System with a 4-bolt flange. Made of high polish stainless steel, It comes with a high-quality heat wrap kit.

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2017-2019 Duramax 3.5" L5P Downpipe (L5P-EXH-A004)-Downpipe-Dirty Diesel Customs-L5P-EXH-A004-Dirty Diesel Customs

L5P 3.5" Downpipe

Features:

  • 3.5" Downpipe
  • Full Stainless Steel
  • Comes With High-Quality Heat Wrap Kit
  • Replaces Restrictive 'Crushed' OE Downpipe and Cat
  • Connects to Factory Turbo Outlet
  • Works with Any Aftermarket Race Exhaust System OR OEM System
  • 4-Bolt Flange

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Tuner Harness Plug Kit
  • Keeps water, dirt & debris out of your trucks harness 

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2017-2021 Duramax Tuner Harness Plug Kit (GML5PKIT)-Tuner Harness Plugs-Shibby Engineering-GML5PKIT-Dirty Diesel Customs

2017-2021 Tuner Harness Plug Kit

  • Keeps water, dirt & debris out of your trucks harness 
  • The base kit does not include DEF tank plugs
  • Does not include shift on the fly plugs (Available Separately)

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2017-2021 Duramax Tuner Harness Plug Kit (GML5PKIT)-Tuner Harness Plugs-Shibby Engineering-GML5PKIT-Dirty Diesel Customs

2017-2021 Tuner Harness Plug Kit

  • Keeps water, dirt & debris out of your trucks harness 
  • The base kit does not include DEF tank plugs
  • Does not include shift on the fly plugs (Available Separately)

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Add Exhaust System

If you're 'delete tuning' your truck, you'll need an exhaust system. This is where you'll choose how loud you want your truck to be, you won't notice any power gains with a larger exhaust or straight pipe kit. It all comes down to preference here!


Note: These Exhaust Systems are designed to fit all Wheelbase & Cab Configurations unless otherwise specified.