GDP

The CAN Plug L5P Duramax by GDP Performance is built for owners who take tuning seriously. It connects directly to the truck’s CAN bus system on 20...

These small switches offer big adjustability. By simply turning the dial left or right until it clicks, you are able to command your truck to give ...

Optimize your Shift on the Fly (SOTF) experience with our SOTF Harness, designed specifically for 2001-2004 Duramax models. Engineered for precisio...

Optimize your Shift on the Fly (SOTF) experience with our SOTF Harness, designed specifically for 2004.5-2005 Duramax models. Engineered for precis...

Optimize your Shift on the Fly (SOTF) experience with our SOTF Harness, designed specifically for 2006-2010 Duramax models. Engineered for precisio...

Optimize your Shift on the Fly (SOTF) experience with our SOTF Harness, designed specifically for 2008-2010 Powerstroke models. Engineered for prec...

Optimize your Shift on the Fly (SOTF) experience with our SOTF Harness, designed specifically for 2011-2014 Powerstroke models. Engineered for prec...

Optimize your Shift on the Fly (SOTF) experience with our SOTF Harness, designed specifically for 2011-2016 Duramax models. Engineered for precisio...

Plug-and-Play CAC Sensor Harness for Powerstroke 6.7L This harness is designed for 2020–2025 Powerstroke 6.7L models using CAC-style tuning inputs....

Optimize your Shift on the Fly (SOTF) experience with our SOTF Harness, designed specifically for 2010-2021 Cummins models. Engineered for precisio...