How badly do you want to do that? The Eastwood company sells a "home" powder coating kit that has just about any color you can imagine...Or, it seems to me that I read here on RCU somewhere about someone that sells an annodising kit? Or maybe that was some kind of plating, I don't remember exactly. Anyway, the Powder coating kit is over $100.00 (!) so you'd have to do a lot of mufflers, or maybe offer to do some of your buddys (for a mild fee of course ) Look in the "Yellow pages" maybe, for a metal treaters place in the area, they might be able to help ya out. Like I said tho, how badly do you really want it???