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      01-14-2013, 06:51 PM   #3
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Drives: 2011 Audi S4, 2008 Vette 6mt
Join Date: Aug 2010
Location: Lone Star State

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Originally Posted by trk411 View Post
Based on your car, you should probably post in the N54 section. However, my understanding is that the car will NOT adjust with Cobb. Stage 1 aggressive should be run with 93, or at least really good 91 if logs show everything is ok. Crappy 91 and an aggressive map may cause some issues. Someone please correct me if I'm wrong.
You are correct, it is for 93 octane.
I was also told by the COBB guys not to run the aggressive map until my spark plugs were changed because I was getting a missfire on a cylinder with23k miles on the car.