Manual to A4 T42 Conversion Harness

PLEASE NOTE: THESE ARE MADE TO ORDER AND CAN TAKE UP TO FOUR WEEKS TO COMPLETE!

This harness is intended to convert a manual transmission vehicle to an automatic transmission using a GM T42 controller (the factory controller for GM 4L60/4L80 transmissions). The purchase includes the service of converting the ECM to the proper file so as to communicate with the TCM as well as support in installation. Currently, this conversion is 100% verified to work on C6 E38 Corvettes (not including ZR1) and 2010+ Camaros. Other platforms may be possible to convert. This harness should only be purchased if you are competent with wiring and can follow directions as the wiring changes are extremely specific.

Tap shift will not function. C6 Corvettes can retain cruise control, but 2010+ Camaros cannot (and the transmission temperature gauge on the center console display will stop working). 2010+ Camaros also require manually wiring the reverse lights.