I used to have rear white plastic & simple green really got in there, in between scratches and lifted and the crap out of there. worked top notch for me. Wouldn't bleaching make the plastic dry & loose it's flexibility? I just think that chemical would be too strong..
I think it was last month's dirt wheels mag that advertized a Magic Racing deal.
I think $90 bux for the two filter, outerwears & coolant bottle bracket.
Their website didn't show this deal though, only in the mag.