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      04-06-2011, 07:58 AM   #27
Doyle
Hellafunctional
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426
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Drives: 335xi
Join Date: Nov 2010
Location: N/A

iTrader: (2)

Results for running the UUC bars with stock suspension:

Goals-
Total Roll: 1.8-2.5'
Total Load Transfer: 56.9-59.9 (with ~57.4 being the sweet spot)

Stock-
Total Roll: 2.99'
Total Load Transfer: 65.44

Both Bars (rear full stiff)-
Total Roll: 1.72'
Total Load Transfer: 68

Rear Bar Only (full stiff)-
Total Roll: 2.59'
Total Load Transfer: 58.06

So, obviously the best choice is returning the front bar, and keeping the rear on full stiff. Otherwise the understeer actually gets worse. This is consistent with what Orb has recommended to xi owners in the past -- the front bar is just WAY too stiff.