I removed the muffler and cat on mine and it just doesn't sound very deep or have much of a tone at all.Its loud but thats about it.I have heard some 7.3's that sound sweet with a nice deep tone and rap to them like a gasser with magnaflows and I want mine to sound like that. I would assume It is the muffler that gives it that sound right?I was thinking mbrp or magnaflow,probably mbrp's new cheap kit they have.