Quote:
Originally Posted by godora
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Judging by how much extra cooling they had to put under the hood on the new X5M and X6M models to keep the engine temperature somewhat manageable, I highly doubt that if you bumped up the output of this engine that you get a lot of mileage out of the engine!
And seeing how complicated this engine has gotten, I would assume that if you wreck one of these engines, be prepared to spend at least $15k-$20k to get that fixed... would that REALLY be worth the little gain you will achieve not to mention you obviously would void your factory warranty on the engine?