I just got the PSS for my 10 vert m-sport in the 225 / 255 setup. Fit fine no mods. Happy with tirerack. Deep regrets now I waited to switch off the OEM run-flats until wore them out. PSS so good its worth it even if just scrapping new oem rfts. Only problem now is I realize the m-sport suspension is too soft and should be modd'ed. The first day I took my 6 year old son to school he asked me how come the car doesn't bounce around anymore -- unprompted and I'm not joking.
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Originally Posted by Tito44
BMW tells me I need to sign a waiver to switch from RFTs.. Anyone else go through this?
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Funny I don't recall BMW asking me to sign a waiver re RFT when I drove home with my F10 M5 which comes factory with PSS (non-RFT).
It is ridiculous they sell a 300 HP sports car like the 135i and the sport option (m-sport) carries RFT and an open diff.