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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Just wanted to let you know that LT headers will void the cars warranty too because it moves the cats from their stock position and obviously so do hi-flow cats
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