hypertech programmer

[MDC9966]

Anyone try one of these? Just wondering how it worked for you.

 

[bosworth496]

Had one on my silver didn't really tell a diff


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[sumo]

Had one on my silver didn't really tell a diff


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had it didnt do anything noticeable at all. SOld it and got a Black Bear AUtocal and have not regretted it since. You should do the same.

 

[stoner]

I have one on 11 Denali. It runs better and added about 3/4 to 1 mile per gallon. Shifting is improved for whatever reason. I had one on an 08 yukonxl SLT 6.0 and it really made a big difference.

 

[sumo]

I have one on 11 Denali. It runs better and added about 3/4 to 1 mile per gallon. Shifting is improved for whatever reason. I had one on an 08 yukonxl SLT 6.0 and it really made a big difference.

its nothing comparable to a Black Bear tune

 

[MDC9966]

I have one on 11 Denali. It runs better and added about 3/4 to 1 mile per gallon. Shifting is improved for whatever reason. I had one on an 08 yukonxl SLT 6.0 and it really made a big difference.

Thanks for the info, which one did you use?