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Old 06-05-2012, 12:55 AM   #3
Axxe
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Join Date: May 2004
Location: Oakville
Posts: 9,765
To be honest, I wasnt impressed with the impeller design on the metal impeller pump I put in my car. The plastic unit I replaced had a significantly smoother profile and what appeared to be a higher efficiency design. But everyone runs the metal units without issue, not so much with the plastic unit. I just dont trust plastic components in my cooling system, the only plastic I have left is the HVAC system.
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