Quote:
Originally Posted by F87source
I'd be curious to see the data as well. In theory it would be effective because it allows the positive pressure building up under the hood to vent and thus creates a vacuum behind the radiator allowing for better air flow.
I also recommend getting a crank seal plate as well, just incase water makes its way down to the serpentine belt and causes it to slip. It is an unlikely occurance but it could happen.
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I don’t know anything about the crank seal guards, but this one seems cheaper than Kies?
https://www.fcpeuro.com/products/bmw...8aAi92EALw_wcB