My car somehow is a lot louder than before. I've driven the car without a catback, and it sounds almost as loud as that now, or at least with the same tone. I'm BPU with a HKS Super Drager exhaust. Have any of you guys had this problem before? Could it be a hole in my exhaust? Or could I have blown a turbo or something? If I blow a turbo, would that make the exhaust louder? Please let me know. Thanks.