Ebay GT45 + 5.9 Magnum + E85 blow thru

I'm guessing due to the added heat in the engine compartment with a turbine cranking in there, you had to change the system out. Before you turbo'd the car that system was sufficient?
Actually it always seemed to struggle to keep it cool even when it was NA with semi fenderwell headers. This BMW radiator does a much better job.