With a normal 10mm spacer, there isn't enough lip to support the centre bore of a wheel in a hubcentric design. RE fixed this by designing a 2 piece spacer. Centre bore is 72.5mm
The small piece extends your hub so that the wheels remain hub centric and the hub carries the load, not the wheel lugs. The edges are chamfered, so you can pry them off without getting them stuck to the hub.
I can't use these anymore since the X5 ix 74.1 centre bore. These will fit E46 with the exception of the E46 Xi I think. Price is $80 and includes the longer bolts. PM me or email me wiward(at)rogers.com if interested. They are a little bit dirty, but I know you guys can clean them up :p
They fit like this