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      11-19-2015, 03:38 AM   #8
John_01
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Drives: E90 325i, E82 135i
Join Date: Mar 2009
Location: Sydney, Australia

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Probably you should get the 18x8.5 ET38 front wheels. You will need around 2.0 to 2.5 degrees front camber to make it fit, and maybe a slight roll on the front guards, trim the front bumper tab as well. Obviously you need appropriate clearance for track use, and for the possible event that you end up on the run off area at full steering lock. If you get the ET45 wheels it wouldn't have enough clearance for the coilovers. ET45 is very marginal clearance for suspension components, so its possible to have issues. With ET38 you can still have trouble with the coilover spring perch, but with the right spring specs it should be possible to make it fit. In the worst case it could require a 3mm spacer, but its not too bad.

Rear wheels will need offset of around ET54 to ET58. Assuming you use max negative camber on the rear.
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