2001-2016 Duramax Transmission Tuning EFI Live

TCM Tuning will dramatically increase the drivability of your Allison by modifying and adjusting your shift points, line pressure, and increasing the holding capacity.

For all TCM tuning we will need a stock read of your TCM emailed to us at sales@peaksideperformance.ca

Due to the sensitivity of flashing these modules, please only CAL-FLASH the TCM under any circumstances unless directed otherwise. Refunds will not be given for any module damage due to incorrect flashing.