I recomend Yokohama AVS Sport. They are nice to drive and have really good grip. I had much better grip with mine on my Sierra IS (turbo converted) than an E30 M3 on 225x40x17 Falken. I had too litle boost to take it on the straights, but the beamer had no chance in any of the turns, (trackday) and I have a solid welded diff...