I think you'd be better off with a HKS silent muffler of fujitsubu system, i have a 3 1/2 inch fujitsubu system , i decided this week to have a cannon welded on to see if it sounded better and it was terrible, sounded like a riced up honda or commodore ,
i also got pulled over by police for the first time, they saw me accelerating and quickly came after me like a had just robbed a bank. lol.. claimed that they saw smoke and suggested i was doing a burnout, this is just from hearing me take off from an intersection with zero boost upto 2500rpm..
so for me , id never have anything that is loud ever again..