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Thread: To upgrade or modify my n63 prior to buying JB4?

  1. #1
    Join Date
    Jun 2018
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    Tampa, Florida
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    My Cars
    2011 550i

    To upgrade or modify my n63 prior to buying JB4?

    I am picking up a 2011 550i Monday. I was curious if its smart to change out spark plugs and coils and map sensor before buying the jb4 or bms stage 1. The car has 60k miles on it and it's all stock.

  2. #2
    Join Date
    Jan 2007
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    Do you have any maintenance history of when the plugs were last changed?

    I would probably just roll it as is. But I do believe the spark plug change interval is every 3rd or maybe 4th oil change.

    Sent from my Pixel XL using Tapatalk
    ASE and BMW Master Certified Technician

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