Quote:
Originally Posted by rantarM3
Just a PSA.
If anyone is planning on replacing their stock water pump, Bimmerworld has a few M3 GT4 water pumps on sale. These are Motorsport pumps and have a metal impeller instead of a plastic one. It seems like a worthwhile upgrade (at the sale price, at least). I picked one up and put it on my shelf for when I refurbish my M3's cooling system.
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Just wondering if you might have experienced any cooler temps based off common ambient temps after doing this?