LSD is a must have upgrade for these cars. Street or track.
PM Mike@VAC. VAC will do a pumpkin swap w/ deposit.
http://www.e90post.com/forums/showthread.php?t=670174
I wouldn't go anywhere else but VAC ...
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2017 BMW 340i (F30); M Sport, Mineral Gray/Coral Red, 6MT; Full Dinan catback, M Perf. shifter
Past: 2011 335i (E92); M Sport, Le Mans Blue/Black, 6MT