Two months with 435i and already dumped the new Bridgestone S001 RFT (only 1500 miles since install) for Mich PS4S. The softer sidewall does absorb the smaller bumps better with the 704 M suspension, and of course overall tire grip is muuuch better. Turn-in with PS4S is also sharper. Also of note is that RFT tires are heavy, so lost ~4 lbs per corner of unsprung weight going to PS4S. JMHO
Enjoy the Drive,
2014 435i M-Opt, M LSD, Dinan CAI/IC/BTurbo/Stage 4, ER TIC/CP, GFB DV+, Fabspeed HJS cat DP & Mich PS4S.
Last edited by enjoythemusic; 04-19-2017 at 06:45 AM.