its really not worth it, cleaning them is hard, if you have good paint on them, the baked on kind, you can use brake cleaner.
if your calipers are old and crusty like mine it would be cheaper to buy new, painted calipers than trying to keep your calipers shiny with an autobody type spray on. i got mine painted silver 6 months ago they dont look bad but they also dont look that good.

secondly, its really not worth the headache,
and possibly another reason to make cops think your car would be a car worth following because it looks so sporty.
anyway, its your car! have fun! try it.
mercedes is a modest car,,,, it dosen't have to show its power like that.
honda civics do. i make shure to smoke one each day!

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87 300E
BLACK GOLD WITH CREAM INTERIOR, SPOILER, AIRDAM
CLEAR MARKERS

87 420SEL
BRONZE WITH CREAM INTERIOR