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Old 06-05-2012, 10:49 AM   #7
1st Gear Newbie
Join Date: Jul 2007
Location: Ontario
Posts: 27
They have the same debate over at the Porsche Boxster forums. There's reports of the plastic water pumps impellers disintegrating and bits of the impeller getting lodged in the cooling system. There's also reports of metal impeller water pumps failing and the metal impeller grinding away at the aluminum engine block. I guess you through the dice and take your chances. As for me I just replaced mine with a BMW water pump. Maranello discounted of course
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