REFURBISHED 2010-2015 E38 ECM with Calibration

Product Description

This is a refurbished GM control module — service number 12633238. We remove all of the factory components that will not be used for standalone operation and tune for your application.

BE ADVISED: We only offer tuning for customer’s using our harnesses! You must be able to provide proof of harness purchase!

ALL TUNING IS CONSIDERED START UP ONLY!  CONTACT A LOCAL TUNER FOR AN IN-PERSON TUNE.  IT IS IMPOSSIBLE TO CALIBRATE A PERFECT INITIAL CALIBRATION REMOTELY.  iF YOU HAVE A CAM OR OTHER MODIFICATIONS, DO NOT DRIVE THE VEHICLE TO YOUR LOCAL TUNER.

IF YOU ARE USING A 4L60E OR 4L80E A T42 TCM IS REQUIRED.

SOME CUSTOMERS WITH STOCK APPLICATIONS DO DRIVE ON OUR CALIBRATIONS; HOWEVER, YOUR SWAP WILL GREATLY BENEFIT FROM A FINAL TUNE.

12633238