2024 Duramax Tuning. The factory tcm tuning from gm in the t87a and t93 leaves a lot to be desired when it comes to proper shift control and torque converter lockup. Shop our patented cold air intakes, diesel tuners, exhaust systems, throttle controllers, boost tubes, and more.
I bought it just because over the 2500hd but pretty much guaranteed i’d never fully max the load capacity out for either. The factory tcm tuning from gm in the t87a and t93 leaves a lot to be desired when it comes to proper shift control and torque converter lockup.