When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I'm in the process with Chuck Cow now but with manual car. Booster (throttle response) makes a dramatic difference. Too early to tell about gas mileage but that is not a major concern for me.
Yeah I can certainly speak from experience working with Chuck on my C6...Just a great job all around. I too am in talks about getting my 2015 Z straightened out and would only use Chuck to get this done!
DiabLew would be another good choice. You do some data logging via the Diablo hand held tuner and he then writes a custom tune. And his turn around was like 1 hour! I did an AFE, ported TB, and Corsa X and Lew did the tune. Now she Barks. Mine was a M7 so not sure what Mike or Lew can do for Auto's...