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hi all, very long time lurker but this is my first post. first off, e90fleet, your posts are always very informative and i have learned quite alot.
second, how would i go about finding out which engine i have in my car? i have an april 07 production e92 335, and it was ordered from a non-sulev state but shipped to the state where i live, which is one of the 4 new sulev states. i've searched but maybe i'm not looking in the right place. finally, any sarcifice in peformance for the added fuel efficiency?
thanks all!
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