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Discussion Starter #1
I have had the APR ECU upgrade done, love it, and am considering their catback exhaust now. APR have an excellent reputation with Audi's and VW's.

My concern is about resonance or booming. I actually like the sound of the stock exhaust - specially the hooowll! - and don't want to have to "endure" low rev booming.

Any APR experience out there?
 
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