2017 - 2023 6.6L L5P AND L5D CHEVY GMC DURAMAX ALL-IN-ONE CUSTOMIZABLE KIT BUNDLE.

This is the 6th kit I've installed on duramax trucks, the tuning process is always smooth and explained wellin the instructions, parts are always at my door fast and damage free, and the customer service has always been amazing. I highly recommend using empire diesel to all my friends who have diesels.

2021 L5P fixed

2021 L5P started to have a def level sensor issue that seemed to only show up when I was really needing my truck. Decided to go with the Empire kit and light tow tune based of a friends recommendation. Tuning process was smooth, exhaust install is a bit more involved but totally still DIY. Truck drives incredible, it feels much more willing to get up and go. So far fuel economy is up a few points as well.

I recived my order quickly, everything was packaged very well. The directions for the install are straight forward and easy to follow. I am still finishing up with a few items and zero complaints.