Stock!!! hah I plan to get some duals eventually, have no idea what yet though but as of now I'm runnin the good ole 2003 ford issued exhaust system
well they look good, don't need 5" tips but they are nice, i like the way my truck sounds now, just a nice rubble
Some people might think your crazy with that comment but you are right in a way. A free flowing exhaust will increase gas mileage if you keep your foot out of it.