From what I read, it shouldn't need any shims unless its already out of spec (and most aren't); but wavetrac provides them with the diff. Is this incorrect?
'08 E90 335i 6MT. Under construction for a 'few good mods'
'09 E93 M3 6MT, H&R sports, Spec TwinDisc P-trim, UCP, FOR SALE
'09 Z4 sDrive35i DCT, MHD Backend flash, JB4, DCI