Just gotta say, after selling my 135i, most people don't care for mods and it can be a PITA when trying to unload. That's why I just ordered ZCP and don't plan any future mods (knock on wood) - especially not suspension .... other than maybe a new muffler
so I agree w/ you OP
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e90 M3, Space Gray / Extended Black, ZCP, ZCV, ZP2, DCT
sold: 2008 BS 135i 6MT