LOL yes VERY loud in my taste, I tried all 3 (magnaflow, flows, spintec) the magnaflows are the quietiest with a underwater muffled sound, the spins are just loud, and the flows are not as loud with a slight signature flowmaster sound ( in my opinion) thats whats I have now is true duals with 40sI have two spin tech mufflers on my 5.9 .. love em! there loud though
they have a strictly race muffler,,lol,but im running dual prosteets on mine and for my tastes,it's pretty loudy and yes has a raspy kinda glasspack sounding sound....Probably the super pro's, something like that. Super small case. Talk to GoFastGray, I think he has them on his truck. Even with cats it's loud. I think Spintech is a little on the raspy side but...loud as far as 'volume' is concerned.