🔥 L5P Duramax | HP Tuners File-Only Tune Looking for maximum power and reliability without sending in your ECM? This file-only HP Tuners calibration is built for 2017–2023 L5P Duramax...
Looking for maximum power and reliability without sending in your ECM? This file-only HP Tuners calibration is built for 2017–2023 L5P Duramax trucks and delivers serious performance gains, tailored to your truck’s exact setup.
✅ Custom-written for your VIN ✅ Works with your MPVI2/3 + Credits ✅ Options for emissions intact or deleted (off-road use only) ✅ Transmission tuning available for 10-speed (T93) or 6-speed (T87A) ✅ Safe, efficient power — no smoke tunes or lazy fueling
Whether you're towing heavy or just want your L5P to run like it should’ve from the factory — this is your no-BS tuning solution.
HP Tuners credits not included. Requires unlocked ECM (or standalone MG1 tuning tools).
