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					Originally Posted by AtomicLabMonkey
					
				 
				The car already has a water pump, why would it need another one?  He could tap into the heater core supply-side hose and run lines to an intercooler from there, just like you can with a oil-to-water oil cooler. 
			
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 Most people have found that the water pump in the WRX doesn't flow enough to handle the cooling of an air/water IC.  But that's on an older WRX running 15psi of boost... not a new RS running running 5psi, so perhaps it's enough.
		  
		
		
		
		
		
		
			
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