they will work, but a 235 might be pushing it on the front. I have 235/40/18 et30 up front on an 8.5 and im pretty sure an et20 on an 8 will just 4mm out further than my setup. For the rear, you are fine and could even use a 5mm spacer to match the front.
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2018 PB/Black G01 X3M40i | 699M | ZDA | ZPP | ZPX | Maxton front lip | X3M vents | 15mm Spacers | Diamond G20 style grills
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