Hello, I have a 1998 audi a4 1.8t completely stock. and recently it is a lot louder. the engine noise reminds me of a ricer. I'm out of state and don't have a dealer I trust here and wont be back for a month or so. It runs fine, but its just a lot louder. PLEASE any HELP would be appreciated! The a/f gauge says its running lean and it appears to be holding boost how it should.


thanks in advance.