Water Coolers?
 

Somehere they have to have a way to extract the heat from the water they are using to cool the air.

Maybe these are for cooling the water in the water-air intercoolers?

I don't think so,,,,the air-water intercoolers have their own radiators built into the intake,,,,so it's a combined intercooler/intake

I have a 35d, and only one on the drivers side. RealOEM says its an "auxillary radiator, wheelhousing"

The 50i shows 2, drivers side is "auxillary radiator, wheelhousing" and passenger side is "engine oil cooler"

There were none listed for the 35i. Does anybody with the 35i have one?

I have never seen the RealOEM parts site before,,,that is really cool. You are right about radiators,,one is for the oil the other is the auxillary,,,Thanks Again..