My two choices were Magnaflow or Flowmaster... I got to hear them both at the shop where I was getting it done... I decided to just cut the muffler off and use a Y pipe instead. Saved me 130 bucks and sounds great! Sounds just as good as the flowmasters, the only difference I can tell is a SLIGHT bubblingeffect, but I guess its cause I have no muffler... Hope this helpes somebody out there