Thread: My new 2018 X4 M40i
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      11-01-2017, 11:51 AM   #8
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2023 BMW G80 M3  [0.00]
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Quote:
Originally Posted by nukezero View Post
Is this 2018 X4 m40i using the B58 engine or still using the old N55 engine??
M40i uses the refreshed/revised N55 its a combo from M235 and M2 N55.
355hp/343tq not the standard Older N55 in 35i models (300hp/300tq)
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