Technically, u should put on the wheel arches if your rocking the 315's or 325's that were offered on bmw. Those wheels look funny without them. I would rather have a great alignment and have the wheels poke out, then I would immediately purchase wheel arches and do it right. Who makes adjustable rear upper arms anyway? I've never heard of such a thing but it's way better than installing adjustable bushings with poor hardware quality in place of the original lower arm equipment

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2001 X5 4.4i WHITE-Loaded like a baby's diaper SOLD