I have a double capacity intercooler on my turbo, (it had a goodridge sticker on it, but i thought they made brakes and lines

). i got it from a scrappy and it was painted matt black. i re did it quickly to look neat and fitted it whilst my bay was apart. but i've been thinking its the worst possible colour cos it absorbs so much heat. Should i try and take it off and get it back to plain alloy? and final questions what product could i use that gets all the sticky mess off straight away, cos i cant get into the fins. Will it have to stay matt black now?
cheers, Joe