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      11-21-2012, 10:23 PM   #6
Private First Class

Drives: 2010 335i xdrive
Join Date: Jun 2012
Location: N/A

iTrader: (0)

if only you had a reliable resource for E85 tuning in your area, if only! you have tons of options on smart mods considering you're taking the track angle. I'd put an LSD on your short list. it's by no means cheap but only on the track are you really going to get the full value out of something like what a limited slip dif can do for you. although, like I said, you have tons of other options for price savvy mods.