2017-2023 Duramax L5P DieselR HP Tuners MPVI3 Custom Tuning

The 2017-2023 Duramax L5P DieselR HP Tuners MPVI Custom Tuning is a performance tuning package designed to maximize power, torque, and efficiency for GM trucks equipped with the L5P 6.6L Duramax engine. Developed by DieselR, this setup utilizes HP Tuners MPVI hardware to deliver fully customized engine calibrations tailored to your specific modifications and driving needs. Ideal for towing, daily driving, or performance applications, it enhances throttle response, fuel economy, and overall drivability while maintaining engine safety.