Interesting concept of doing "figure 8s" to exercise the CV axles. Makes sense to get the balls to articulate more and move within the spindle cavity. I wonder tho if this will stretch the boot more and potentially rip it. My passenger side outer boot looks like it's ready to rip--but hasn't yet.

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2003 BMW X5 3.0i -- MT5, 3.64s final gears, H&R lowering springs, K-Mac bushing kit
2007 BMW X3 3.0Si -- MT6