No an auxillary IC would be an additional chiller. People use heater cores or tranny coolers. I prefer a heater core because it is made to cool water rather than the tranny cooler which is made to cool oil. Mount one in the grill area so the air will hit it. You'll need the rubber hose mod to be able to plumb one in, and most likely plan to upgrade your pump because the stocker is barely adequate to circulate the water let alone through another chiller.