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Front alloy wheels: 20x10" ET40
Wheel part number: BMW 36116772249
Rear alloy wheels: 20x11" ET37
Wheel part number: BMW 36116782916
e90post has a wheel size calculator on its Wheels/Tires section and here is what it says:
" 16mm LESS clearance on the strut side, and the outside edge of the wheel will EXTEND an extra 22mm"
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