Ive always liked the louvered heat shields that the 520s and other models had. Stainless or black. My 3-12 didn't come with one so I've been looking for one. Found this stainless 520 shield. I'm going to have to tack some studs with spacers on the nelson muffler but that's no problem. It's a little long, but once it's polished and centered I think it will look cool