I have the Greddy FMIC, I am wanting to paint black to keep the stock G35 sleeper look.
What typr of black paint would be safe? Not clog the fins on the cooler? I am thinking about the heat paint (like for grills)??

 

You don't want to use heat paint (acts as a thermal barrier) , you want to have a "thermal dispersant coating = TDC" applied. The shop I am familiar with is:

http://www.performancecoatings.com/benefitdata.htm

I beleive Swaintech as others also offer such a prodict and service.

 

ive seen this done on an STi w/ a upgraded turbo, FMIC, exhaust ect... that thing was insane, but it was a black STi w/ a black painted FMIC didnt even realize it was there until i went up close to it...

 

I went for the stealth look with my vortech.

Check out the link. The last picture is my engine bay!

http://www.clearimageautomotive.com/...%20project.htm