Depends if yer planning on running a resonator or not. Are you just cutting the old muffler off and welding a aftermarket one on? If that's the case the stock restonator already in place should quiet it quite a bit.
There are a few guys running dual tip mufflers on here, but I haven't seen a stainless dual tip muffler on any of them. I think they're mostly running the spec-v or altima mufflers.