I recently bought a 2008 Wrangler 2 door. It has stained and faded bumpers. For the life of me, I can't get the mud stains off. I have tried regular soap and water with a brush, simple green, as well as other generic degreasers, magic erasers, 303 aerospace protectant, and refinish restorer. None of them will take the mud stains off. Both the 303 and the refinish restorer remove the fading in their own way, but the mud stains remain. It looks horrible. I can darken it, but it is all spotted with brown. I am from Oklahoma, and we have red clay, but I can't imagine that it would be that different. The one thing I haven't tried is the blowtorch thing. I am trying to avoid taking my fenders off. The other option is to paint or bed line them. I am trying to avoid this. I just feel like it is a point of no return. Does anyone have any solutions I haven't tried? I am not looking for something to restore trim, I have 303 and refinish restorer both of which are superb at that, I am looking for a way to remove the mud stains. Any help would be appreciated.