single inlet single outlet, or run it straight back and use an import can.....
I'm going to run my exhaust...2.25 inch catback to an import can hidden up and next to the spare tire behind the roll pan, no can to be seen, and with the muffler I'm going with should sound good....they have sound clips down below in the "reworking my exhaust again" post by me.....but most people will say go with a 2.25 inch single inlet single outlet to a turndown
Caleb