TransGo Manual Shift Automatic Transmission Reprogramming Kit - GM 4L80E / 4L85E 1991-2013 931214 Exhaust port and bolt pattern

Exhaust port and bolt pattern are raised

Diagnostic Scan Tool Cable

Hypercoil Conventional Springs are high-performance

Must Use With MSD Crank Trigger/Ignition Control

Shoe Box Style

TransGo Manual Shift Automatic Transmission Reprogramming Kit - GM 4L80E / 4L85E 1991-2013 931214 Exhaust port and bolt patternThis TransGo Reprogramming Kit provides full manual control for upshifting and downshifting 1st through 4th gear, there are no automatic shift functions retained. This kit delivers short firm shifts for performance as well as greater overall durability. It is designed for the off road driver only and for vehicles that do not have any TCM controls. It's all about providing the required gears when there are no computer controls. Similarly, the internal