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· Registered
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anything is possible if you are willing to spend the time and money on it. are you dead set on keeping the V10? that is where most of the problems are going to be. mostly you are going to have space problems. the the new 550xi engine could fit.
so would a well built 535xi. i am sure with the right stuff in them you could get close to 600 hp out of them.

then again, why mess with the beast?
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