Hummm..maybe it could be my X-pipe, but I do agree my car is also louder at idle and at WOT than it was before. But I just don't understand how it is quieter everywhere else. Before I put the turn downs on you could just barly hear my blower (tail pipes), now with the turn downs you can just barly hear my exhaust over my blower. Oh well I'm switching to a full length header setup after I get my tubular K-member. Maybe that will louden things up a bit with full lengths and the such.
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2000 Mustang GT