new muffler for my lude

hey guys, i bought the apexi world spot cat-back exhaust and i was pissed at the sound i got out of it. So just a month ago i got a 5zigen fireball muffler and put it on with the apexi pipes. everyone said that id get a good sound outta that, but it sounds to clangy and makes me feel like im drivin a go kart. Does anybdy have an idea on what kind of muffler i should buy for my car thatll give me a nice deep loud sound?