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      01-12-2013, 03:38 AM   #12
Beedub
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Drives: 2007 Z4 M roadster vt2-500
Join Date: Sep 2007
Location: UK

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Quote:
Originally Posted by 22022 View Post
I went and measured the oem water pump pulley it is 4-1/2 '' outside diameter,The ESS one is 5-1/2" outside diameter.
So my water pump would spin slower than yours.....I think.
yes. yours would spin slower. just checked the instructions and their is no mention of changing water pump in my set.
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