Quote:
Originally Posted by LuckiSevens
Mostly down to aftermarket supercharging on the M3, the M5 is supposed to be designed for that power.
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As the a/market superchargers on E93's,tunes and mods may exacerbate a weakness on M5 if it is there over a period of time especially if driven hard regularly.Affected oil pumps were replaced on approx 650 US models back in 2012.