i have two new Audi's a TT that is great as is...and an 1.8 Avant, that i'd like to tweak a little. i talked to the APR people today about a boost and a filter...for $400. if there is anyone out there who has done this...or know's a link to help me out here, i'd appreciate it.
these are my 4th and 5th new Audi's in 11 years. Audi's rule....
thanks.

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