2nd level chip
Thanks.
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And then go to that companies site for their performance figures.
To get an idea of what the various chips are, just hang out around here and look at people's signatures. You'll pick stuff up very quickly.
APR and GIAC are the family favs
but MTM is the long time prince
Best bet if you want to get more performance out of your A4 is to find a tuner or distributer near you and go chat with them. I would recommend however talking to local enthusiasts first, just so you arent at the mercy of a salesman.
good luck



