I am not a fan for spacers. Just one more component to worry about and that is not factory. More stress on ball joints and wheel bearings. Will they seat properly against the hub? Need to change to longer lugs...more stress, Alignment and tire wear issues. Aluminum spacer need to be cleaned and re-coated from time to time due to water, salt build up causing corrosion.What happens to the factory warranty if a part component or suspension issue/failure.....void warranty.

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2013 BMW X6M-current
2013 Audi S4-current
2007 BMW X5 4.8i (E70)-sold