2017-2023 L5P DIY Emissions Solution Package

The L5P Duramax is GM's crowning diesel achievement. These trucks are extremely robust powertrain wise and are very responsive to aftermarket tuning and modifications. 600hp at the tire with stock fuel and air is not uncommon! All this while achieving insane fuel mileage as low as 9L/100km (26mpg US/31mpg CAN) highway average!

We at Copeland Customs are very partial to the L5P- we live and breathe L5P trucks! If you have any questions regarding this platform be sure to use the contact link on our homepage to get ahold of us! 

The base L5P DIY Emissions Solution Package contains:

• HPTuners MPVI3
• 6 HPTuners Credits
• Single ECM tune
• Canbus plugs
• Full EGR kit
• 3.5" downpipe
• 4" cat and DPF pipe
• 23L of ACDelco pre-mix coolant
• Step-by-step instructions and complete tech support throughout the entire process. From unlocking, to tuning, to mechanical. One phone call or text away from the answers you need!*

Below are additional options:

• Switch on the fly tuning (stock, +50hp, +85hp, +100hp, +120hp, +150hp) controlled via steering wheel cruise control buttons (+$475)
• PPEI transmission tuning (includes unlocked TCM, 4 HPTuners credits, and PPEI TCM file custom built for your truck) UNBELIEVABLE driveability and towing improvement! (+$1,430)
• Various exhaust system configurations**:
  • 4" full system no muffler (+$220)
  • 4" full system w/ muffler (+$310)
  • 5" full system no muffler (+$300)
  • 5" full system w/ muffler (+$350)
    
  • 5" full system dual exit no muffler (2017-2019 only) (+$665)
• S&B Cold Air Intake (+470)

*Note: this product contains pieces that could be considered complicated installation. Basic mechanical knowledge and a selection of hand tools is required to install this product. Contact before ordering if you have any questions or concerns related to the installation of this product.

**Upon ordering you will be contacted regarding exhaust system choice.