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  1. #1
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    135 Rear Turbo Part Numbers?

    Hey guys and gals...I'm going to be replacing my turbos at some point in the near future and I was researching costs, etc. I noticed that there are two different available part numbers for the rear turbos on our cars which are also the same as the Z4 and 1M.

    The first part number is 11657649290

    The second part number is 11657649291

    Does anyone know the difference?

    Thanks!

  2. #2
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    1 out of 1 members liked this post. Yes Reputation No
    11657649290 is used only on the E9X, 11657649291 is for only E8X. Not sure the the exact difference was but I do recall that the rear turbos are not interchangeable between the two chassis' on a US spec car.
    H O O N

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    Thanks for the reply! I think the difference then is that the N54s in the E8Xs have less room so the actuators are different and not necessarily the turbos. The fronts are the same though. This makes sense. Thanks!

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