Ive had my 01 cobraa for almost two years and kept it pretty close to stock with the exception of an SLP LM1 catback. I finally bit the bullit and installed a set of lontubes and an off road x-pipe.........ummmmmm it's really loud. I was expecting the loudness but the raspy tone between 2500-3000 is a little obnoxious. that is all:banana: