I've read through a few posts that mention overheating issues with F.I.

In one of the Australian motor magazines, they compared the R35 GTR (std) to a TT 370z. The 370z went into limp mode after 1 lap due to overheating - not oil but water. The tuner said it was the front mount blocking air to the radiator. Adding extra coolers was an issue due to lack of space.

What have you guys done regarding overheating?

Does the FMIC need to be as large as it is?

 

People who go TT on a G37 don't really do it to track their cars, our engines are already overheating when naturally aspirated.

 

You can buy bigger radiators for the car if you want.

 

get a hood scoop, each one you add adds 25 hp because of air flow :P. But yeah bigger radiator is your best bet.