[yellowvert]

Not sure I understand what you are asking but if you are wondering if acetone will clean it, dab a small spot with a q-tip. See what it does.

Btw, highly doubt it's painted. My stock one looks naked. I bet the RLS guys would know. Ask Thomas.

 

[forkmeupscotty]

Oh, I did test it with acetone few weeks ago, and yes, the stock intercooler is indeed PAINTED.
I dabbed a little bit in the corner of the bracket with a q-tip and rubbed it with a piece of tissue paper and the PAINT does come off ever so slightly.

So yeah, you'll need paint and aluminum safe solvent to clean out the intercooler, or be very careful using acetone and make sure nothing spills out.