Quote:
Originally Posted by slickmetal
Intro: Went to the track this past Sat night and a guy was there with his stock Cobalt SS, and was running low low 13s and finally a 12.9...after inspection it was stock but was running just a custom tune. He told me and guaranteed/tested it was undetectable by GM/dealers.
I want to go with a tune by him but he asked me several question but I need help with the following:
1. Shift firmness
2. Redline changes
I have a 2011 L99 A6. I know there is a slight difference is "S" mode (M without tapshifting) and "D". From what I read "S" mode was a little better...Any recommendations/cookie cutter adjustments for one or both modes? I would have went with Jannetty tune but it would be recognizable and void my warranty...
Additions to the tune are LT headers/hi flow cats and CAI. The ported TB will come in later.
Thanks for your assistance!
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Thinking out of the box, don't quote me but Its my understanding that you can get a new computer from GM for less than $200,
Just a thought but If so, you might be able to swap your old one out and save it. Put the tune you want on the new and go.
The computer may be tracked by the mileage however.
Maybe a problem with on-star also.
Next time I'm with my tuner I will ask.