E46Fanatics - View Single Post - Water Pump & Pulleys Help!
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Old 07-09-2010, 07:50 PM   #7
Registered User
Join Date: Dec 2009
Location: Baltimore, MD
Posts: 125
My Ride: 2003 530
I've got the Stewart pump. No real noticeable difference. It's just a better pump.

Find a way of eliminating the mechanical fan (ie Zionsville) and you will notice a better throttle response
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