i dont think youll get that back to gold fella.
cant see on the picture very clear but is the gold under all that black sh1t? looks more like corrosion!
if its tar and grime try a pressure washer and some tar remover
good luck!
oh geez......
dont let david see my post!
there must be a lot of crap on them if you cant see the gold through it - looks like corrosion to me - i might be wrong though...... i normall am!
better f**king not be or theyll be going back to K-Tec !!!!!!!!
mark my words Scottish.....
Think i'm getting an elia spoiler now