Looking for an exhaust shop in the Portland area that can install a down pipe/ test pipe + exhaust. Also what types are recommended including the sizing? I don't want a drone sound when at idle. Looking for something to be more stealth like and sound on acceleration. My A4 is stock right now, expect a DV, and I'm soon to be chipping it with the UM Stg 1 tune. Any insight would be appreciated. Looking to do this in the next week or so!
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