It's NEVER recommended to mix and match performance tires. Different handling characteristics, pushing the car, could end up not pretty. Not worth it IMHO.
2012 MR e92 M3 DCT, fully loaded... ESS VT2-625
, Brembo 380, BBS FI's, Akra/Challenge Sport, KW Sleeve kit, Full OEM CF Interior
2008 e92 M3 Coupe 6MT | AW/BLK Extended...SOLD!