Single Tune without hardware 2020-2023 Duramax L5P for HP Tuners Power Level::Optimized Stock Add an Auto Cal V3

Add an Auto Cal V3 to your order if you don't have any EFI Live Hardware for use on your vehicle

View the C6268P Installation Instructions

small tractors

Puts your vehicle near the 400 RWHP mark

For competition use only

Single Tune without hardware 2020-2023 Duramax L5P for HP Tuners Power Level::Optimized Stock Add an Auto Cal V3Step up the performance on your 2020, 2021, 2022, or 2023 Chevy Silverado or GMC Sierra with our purpose built single tunes. This product is for vehicle owners and shops that already have the required hardware for tuning the L5P Duramax. Please be sure you have access to the following: HP Tuners MPVI3 Unlocked T93 (ONLY REQUIRED IF DOING TRANSMISSION TUNING) Select the single power level below that best suits what you demand out if your vehicle.