There is not hard external air to air oil cooler.
If you look at your oil filter housing, you'll see coolant lines feeding into it. Coolant cools the oil in the housing prior to the oil shooting into the motor. This is a pretty standard oil cooler. Standard meaning, its pretty standard on normal cars. I'm pretty surprised due to the fact that other "sport" cars like Evo's and STI's have rather large external air to air coolers.
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