it gets raspy if i get on it, if im not pushing it it doesnt rasp. its basically just a straight pipe under there. not much mufflin happens :lol there are no precats. its just turbos, pipe, my secondary cats, lots more pipe, then mufflers and thats all folks. but the mufflers are straight though design, so no baffles, and theyre as long as my hand. its very open. it rasps like the APR track cars i saw at GT Live.