Quote:
Originally Posted by Dackelone
Stacy, this is sort of the nature of the Beast(ie the run flat tires = RFT). They make the 135i ride harshly, jumpy, and skippy over anything but smooth pavement. Changing to regular non-RFT will help - a lot! But some of that jumpyness will remain (a small amount).
I think only a real suspension like BMW's Performance Suspension kit together with replacing the rear subframe bushings will solve the rear end's looseness. Lots of people also have replaced the front control A-arms with M3 bits.
I have replaced my RFT with non RFT Michelin PS3's. And... I LOVE them! So much better than the stock RFT (nee run-craps).
I am also temped to now replace my rear subframe bushings (all four of them with M3 ones) to see how that will make the rear end feel in the twisty bits. 
Dackel
PS: Btw - Welcome to 1addicts  |
This.. I have the Michelin Pilot SS and BMW PS. Much improved handling, however the rearend still feels loose to me. I will install the M3 rear bushings and rear control arm to hopefully fix this.