I just took the plunge and replaced my muffler with a Y pipe. I gotta say it is A LOT louder then I thought it would be. I read on here that its a very mild exhaust, its not. Its not crazy ricer loud but its not quite. Well let me take that back, at idle and if you dont give it much gas and shift early its quite enough to not notice with the windows up but anything beyond that is loud. I did it yesterday so I haven't decided whether i'm in love with the tone or not. Its a real throaty tone that supposedly sounds amazing when you drive by someone.