L5P Transmission (TCM) Tuning Kit for 2017-2026 GMC/Chevy 6.6L Duramax
---tab Description--- Our L5P TCM tuning package delivers premium transmission calibrations for 2017–2026 GM Duramax L5P trucks, perfectly optimized to pair with upgraded powertrains. You only need to…
TL;DR: ---tab Description--- Our L5P TCM tuning package delivers premium transmission calibrations for 2017–2026 GM Duramax L5P trucks, perfectly optimized to pair with upgraded powertrains. You only need to license your factory TCM and upload our pre-built tune files. It recalibrates shift timing, shift p…
