Anyhow, I have both SL & non-SL TE37 (both sets 18x10.5 squared), and right now have 285's mounted at the rears on both sets (one DD & one track) and no problem at all. Planning on 295 on the rear next.
2013 E92 M3 Jerez Black DCT ZCP
2011 E90 M3 Jerez Black DCT ZCP (Gone - traded in)
2008 E90 M3 Jerez Black 6MT (Gone - End of Lease)