Choose Your Tuning

The MPVI3 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 MPVI3 Custom Tune Package (CCS-L5P)-Tuning-Coopers Custom Solutions-Dirty Diesel Customs

CCS Tuning Package

Package Includes:

  • HP Tuners MPVI3
  • 8 HP Tuners 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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2017-2019 Duramax AMDP MPVI Custom Tune Package (MPVI3-17-19-AMDP-L5P)-Tuning-AMDP-Dirty Diesel Customs

AMDP Tuning Package

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ECM Unlock Method

You will need to unlock the ECM in order to apply custom tuning onto your L5P. 

Note:

These unlocked ECM's will not be able to communicate with the GM Factory Tools, GM will not be able to flash or modify your ECM for recalls anymore.

2017-2022 Duramax E41 ECM Upgrade Kit (ECM-00-L5P-K)-Unlock Cable-HP Tuners-ECM-00-L5P-K-Dirty Diesel Customs

HP Tuners E41 ECM Upgrade Kit

  • Allows you to remotely unlock your L5P E41 ECM, making the ECM ready to apply custom tuning. 
  • Eliminates the need of having to remove the ECM  
  • Enables read, write, & special functions in the VCM Suite software using and MPVI2+ (with Pro Feature Set or MPVI3 Interface

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2017-2019 Duramax EVOHT2 w/ ECM Unlock Tool (26402)-Tuner-Edge Products-26402-Dirty Diesel Customs

Edge EVOHT2 w/ ECM Unlock Tool

Allows you to flash your 2017-2019 L5P ECM without removing the ECM for an Unlock. 

Features:

  • Allows in-vehicle unlocking of the ECM
  • No Cores to deal with
  • Saves the headache caused by swapping ECMs  

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2017+ Duramax HP Tuners Modified E41 ECM (HP-L5P-E41-ECM)-ECM-HP Tuners-HP-L5P-E41-ECM-Dirty Diesel Customs

HP Tuners Modified E41 ECM

With this ECM you gain full access to calibrate, log, and scan via the OBD2 Port with your MPVI2 and VCM Suite 4.3+. 

Features:

  • Gain the ability to tune your 6.6L L5P.
  • Allows full access to calibrate, log, and scan through the OBD2 Port Via an MPVI2 and VCM Suite 4.3+
  • VCM Scanner, dealer diagnostic and other diagnostic tools will continue to function normally.

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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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Add Shift on the Fly

The Shift on the Fly (SOTF) Switch is the easiest way to switch through your tune files on the go. If you're choosing a device with more than one tune file, we highly recommend adding one of these switches to your package!

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2017-2021 Duramax 6 Position Switch (H-M04-00)-SOTF Switch-HP Tuners-H-M04-00-Dirty Diesel Customs

6 Position Switch

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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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2017-2023 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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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.

2017-2022 Duramax 4" CAT & DPF Race Pipe - No Muffler (FLO-882)-Delete Pipe-Flo-Pro-FLO-882-Dirty Diesel Customs

4" Delete Pipe Exhaust Kit (No Muffler)

Stock Appearance

Retain the stock look and feel of your truck by only removing only the section of exhaust where the DPF & Catalytic Converter sits. Fits just like factory with OEM Flanges on each end.

 

Retains Factory Tailpipe

Flying under the radar? Add a Muffler and nobody will be the wiser until you put your foot into the throttle. Choose No Muffler if you're looking to add a little bit of noise to the truck without being obnoxious. 

 

Factory Size

The delete pipes include a 4 Inch Aluminized Steel Pipe that fits just like your factory exhaust system. 

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2017-2019 Duramax 4" Downpipe Back Exhaust - No Muffler (FLO-880NM)-Downpipe Back Exhaust System-Flo-Pro-FLO-880NM-Dirty Diesel Customs

4" Downpipe Back Exhaust (No Muffler)

Straight Pipe:
Will give a great sound with little to no drone. 
 
Full Replacement
This is a complete 4" exhaust replacement from your downpipe back. These kits will not only sound great, but also increase your mileage while helping keep your EGT's low. 

Great Sound
This kit will make your truck a bit louder, while still keeping your neighbors friendly. A bit louder than factory but with a more aggressive exhaust note, these are great for street or track.
 
Painless Installation
These kits mount on your factory hangers and fits perfectly onto your factory downpipe. It's a very straight forward install, just drop your factory system and hang this kit in its place.

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2017-2019 Duramax 4" Downpipe Back Exhaust w/ Muffler (FLO-880)-Downpipe Back Exhaust System-Flo-Pro-FLO-880-Dirty Diesel Customs

4" Downpipe Back Exhaust (With Muffler)

Muffler:
It’s still going to bark when you get into the throttle, and when paired with a muffler it’s dulled down to a nice sound that is tolerable for diesel enthusiasts of all ages. 
 
Full Replacement
This is a complete 4" exhaust replacement from your downpipe back. These kits will not only sound great, but also increase your mileage while helping keep your EGT's low. 

Great Sound
This kit will make your truck a bit louder, while still keeping your neighbors friendly. A bit louder than factory but with a more aggressive exhaust note, these are great for street or track.

Painless Installation
These kits mount on your factory hangers and fits perfectly onto your factory downpipe. It's a very straight forward install, just drop your factory system and hang this kit in its place.

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2017-2019 Duramax 5" Downpipe Back Exhaust - No Muffler (FLO-680NM)-Downpipe Back Exhaust System-Flo-Pro-FLO-680NM-Dirty Diesel Customs

5" Downpipe Back Exhaust (No Muffler)

Straight Pipe

It’s deep, it’s droney, and it turns heads 

 

Aggressive Sound

This kit is one of the loudest options for the 6.7L Powerstroke, adding a muffler will help with highway drone but it will still produce deep and aggressive tones. 


Dislike your Neighbors?

Perfect. This is the exhaust for you.

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2017-2019 Duramax 5" Downpipe Back Exhaust w/ Muffler (FLO 680)-Downpipe Back Exhaust System-Flo-Pro-FLO-680-Dirty Diesel Customs

5" Downpipe Back Exhaust (With Muffler)

With Muffler
Maintains a deep sound but helps reduce the in-cab drone. 

Aggressive Sound
This kit is one of the loudest options for the 6.7L Powerstroke, adding a muffler will help with highway drone but it will still produce deep and aggressive tones. 

Dislike your Neighbors?
Perfect. This is the exhaust for you.

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Add Exhaust Tip

Finish the look on your truck with an Exhaust Tip. These will bolt onto the end of your exhaust and have a dual wall design for a clean finish.


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Universal 4 to 5" Dirty Stainless Exhaust Tip (DDC-EXH-A054)-Exhaust Tips-Dirty Diesel Customs-DDC-EXH-A054-Dirty Diesel Customs

5" Dirty Exhaust Tip

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4" to 5" Dual Wall Angled Exhaust Tip (T5053)-Exhaust Tips-MBRP-t5053-Dirty Diesel Customs

5" Exhaust Tip

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4" to 6" Dual Wall Angled Exhaust Tip (T5072)-Exhaust Tips-MBRP-t5072-Dirty Diesel Customs

6" Exhaust Tip

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5" to 6" Dual Wall Angled Exhaust Tip (T5074)-Exhaust Tips-MBRP-t5074-Dirty Diesel Customs

6" Exhaust Tip

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5" to 7" Exhaust Tip - Rolled End O.D. (T5127)-Exhaust Tips-MBRP-T5127-Dirty Diesel Customs

7" Exhaust Tip

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Dirty Exhaust Tip (Trigger-Exhaust-Tip)-Exhaust Tips-Trigger Industries-Dirty Diesel Customs

6" Dirty Exhaust Tip

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Add Fuel

Adding a Lift Pump will add reliability to your entire fuel system by significantly improving filtration, water separation, and removing air from your fuel system. If you're thinking of adding a lift pump, leave some room for growth, it won't hurt having too large of a pump.

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2017-2019 Duramax Titanium Signature Series 140GPH Lift Pump (TSC13180F140G)-Lift Pump-Fass Fuel Systems-TSC13180F140G-Dirty Diesel Customs

140GPH Lift Pump

Power Level

These 140GPH Fass Pumps are capable of fueling up to 500HP on your 6.6L Duramax! 


Flow Rating

140 Gallons Per Hour

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2017-2019 Duramax Titanium Signature Series 220GPH Lift Pump (TSC13250F220G)-Lift Pump-Fass Fuel Systems-TSC13250F220G-Dirty Diesel Customs

220GPH Lift Pump

Power Level
These 220GPH Fass Pumps are capable of fueling up to 900HP on your 6.6L Duramax! 

Flow Rating
220 Gallons Per Hour

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Add an Intake

Adding an intake isn't about power, it's about reducing the restriction, increasing efficiency, while maintaining strict filtration standards. These kits are offered with a Oil Cleanable Filter and Dry Disposable.


The Oiled Filter is recommended for those that mainly use their trucks for City or Highway driving and would rather clean their filter instead of replacing it.

 

The Dry Disposable is a better option if your truck frequently sees dusty environments or you'd rather toss out your filter instead of cleaning it.

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2017-2019 Duramax S&B Cold Air Intake (75-5144)-Intake Kit-S&B Filters-75-5144-Dirty Diesel Customs

S&B Cold Air Intake Kit

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Summary