I'm considering having Martin from MGS CUSTOM TUNE Reprogram the ECU on the 2008 h2 Hummer.

http://www.mgscustomtune.com/GM.html

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He said it would cost $450.00 for the full tune which takes about 2 hours.
Anyone ever had this done.

 

I'm looking into it also, I have been doing a lot of research and talking with Black Bear Performance. I think this is the way to go.

 

Why not just have it done on the dyno?

and (not that I have an interest in the sale - except the seller is a good guy) but there is a guy on Elcova forums that is practically giving away a ECU for a 2003 - dont know if they are interchangeable. Anyways, if they are it should make the reprog easy... keep your ecu send that in and get it back and swap out.....

 

From what I understand, Martin from MGS CUSTOM TUNE does Dino the vehicle while he custom tunes the engine & transmission computer .
I think that is what I read.

Any hummer owner will try something new if it helps with the Gas mileage.

 

From what I understand, Martin from MGS CUSTOM TUNE does Dino the vehicle while he custom tunes the engine & transmission computer .
I think that is what I read.

Any hummer owner will try something new if it helps with the Gas mileage.