ive just got the trust pe2 catback on mine atm. sounds fairly stock at idle (from inside the car) but yeah sounds good on WOT. I assume it will get slightly louder once I put in the front/dump pipe and get tune. Also fitting an intake this wknd so should help a bit with the noise level. can't say i prefer it over the wrx noise tho..

what difference do the cams make noise wise?