Sounds good.

On the tires, I'd first check on what wheels you have. On mine (specs listed above in post #5), the front wheels are 1" narrower than the rears (9" vs. 10") so the 255s in front and 285s in rear make sense. I don't know how possible it would be for me to put 285's on the 9"-wide wheels (and not interested to find out).

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2001 X5 3.0i, 203k miles, AT, owned since 2014