ATS Diesel 11-14 GM 6.6L Duramax 2WD TCM Upgrade A50 to T87

This ATS Diesel Transmission Control Module (TCM) upgrade replaces the problematic A50 TCM with an advanced T87a TCM for 2011-2014 GM Duramax 6.6L engines. The T87a TCM features a faster processor for improved shift quality, quicker shifts, and enhanced drivability. It also provides a more aggressive factory exhaust brake for safer driving, especially with heavy loads. The kit includes a pre-calibrated T87a TCM, a Translator module with Co-Pilot transmission pressure enhancements (for handling higher power levels), a mounting bracket, and a wiring harness. This plug-and-play solution is compatible with both stock and modified trucks and requires no core charge.