ok so here's the deal. I have already painted my calipers once about a year ago. I painted them yellow and i am kind of sick of the whole yellow thing. I did it then to be differen't, but now i want to go to red because it looks much better IMO. My question is, do i need to take the yellow off first or can i just paint over it? If i do need to take it off how do i get it off? Thanks in advance.