thats kinda what I figured. I don't think I've seen a factory exhaust system, atleast on something newer, that wasn't stainless. They all get some kind of rust on them. The odd part though is that I have it on the muffler, but nothing else on the exhaust system. The tubing has turned kinda a brown color from a little surface rust, but the muffler acutally has little spots of rust built up all over it. Isn't 409 the lower grade of stainless, and 304 is the good stuff, usually what an aftermarket system is made of when its all polished up?
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