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Tomorrow I am dropping off my 07-A6 at Gulf Coast Performance for the install of a 3:15 rear. Going from the stock gears it should now pull like crazy. I may need to get a neck brace. LOL
Install of the rear with the 3:15 gears went well. My biggest issue is that I have to keep my foot out of it for about 500 miles for proper break in. At this point I really can't give a review except that it is turning a few hundred RPM's higher on the highway.
Jason also retuned the A6 with a updated program since the last time he tuned it. I can say, even staying at low RPMs I can feel it is shifting faster and harder.
I may have to take a road trip to put the miles on, so I can start playing with this thing...