and I know here in PA, for state inspection, your exhaust must exit to the edge of the body. It can do this anywhere, as long as its behind the passenger compartment, which, on the jk's I guess would have to be all the way to the rear. I ran mine with the muffler off before I put my new exhaust on and I thought it sounded pretty good. Only thing I didnt' like was the popping out the exhaust when i left off the throttle.
SOLD-08 Unlimited X, "jeep green", auto, limited slip, hushpower muffler, Aerotech Interceptor gauge,Powerstroke tranny cooler, skidrow evap skid, AFE Pro 7 filter, Teraflex leveling kit, EVO control arm skids, 15x8 Black Rock 909's, 33" KM2's