Im running a 12a turbo in my car.Does anybody know if i have a hi flow aluminum or at least an aluminum option for this motor,or am i stuck with the cast setup.Thanks in advance.

 

There is an aftermarket cast aluminum housing water pump put of Japan, but the stocker has better impeller blades.

 

I recently replaced my water pump. The one I received looked identical to the stock pump, but was aluminum. Don't recall the make, so I'm not sure how you would go about finding one like that.

On a side note, I also added a 2nd gen water pump housing. It weighed a lot less than the stock cast iron one.