From what I've seen from Brad Roberts and others, the fastest spec Boxsters don't run at the minimum allowed heights. Search for threads by insite, lap1doug, thstone, and some others about suspension geometry, control.arm angles, etc... To [poorly] summarize, when you get too low, the angle of the lca passes horizontal and makes for really bad camber curves and bad strut geometry. [I said poorly summarized
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Edit: What he said below
