I know this thread sounds stupid, but i ain't kidding u guys.
when i first bought my car, the exhaust was rather raspy (like an old alfa) especially when booting it at low revs. I initially thought it was the character of the muffler and thought nothing of it.
then, after a tune up, (cleaned out throttle body, intake) the raspy sound was much reduced. so i thought to myself (might be the crap from the intake thats causing the sound) lmao
now, after an oil change and an engine flush (cleaning of the intake was done recently), the rasp of the exhaust is very pronounced (again like an old alfa, crackling at some point). Its very obvious when booting it at low revs.
whats goin on?? loose exhaust mountings??