not much if its clean...but getting just one part that is attached to soemthing else is going to be hard... they electrically charge the element and throw coloured **** at it...prep work is the expensive part, the other hard part is finding someone to do it. Generally I just call harley dealers around here and ask, cuz harley riders have **** anodized a lot.

i learned to do it myself and spoke with my physics teacher about it and he informs me it could easily go HORRIBLY wrong, (dealing with batteries and acids and things), so he recommend i not do it myself.