L5P Transmission (TCM) Tuning Kit for 2017-2026 GMC/Chevy 6.6L Duramax electric exhaust cutout 7L Diesel—especially for towing
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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
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L5P Transmission (TCM) Tuning Kit for 2017-2026 GMC/Chevy 6.6L Duramax electric exhaust cutout 7L Diesel—especially for towingtab Description Our L5P TCM tuning package delivers premium transmission calibrations for 20172026 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 points, torque converter lockup behavior and transmission hydraulic line pressure entirely. This full transmission control module enhancement requires zero
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