Originally Posted by Suntzu
I was considering the M3 arms for my stock 330i as I miss the turn in and feel I had with my FOCUS ST.
I do have 17 RFT though. Will the M3 arm kit be a pain in the A## with stock shocks and springs with RTF??
Turn in should be pretty sharp with RFT's; at least that's what I remember and missed when I switched to traditional tires. M3 arms work fine with oem springs and dampers but may be a bit hard with RFT's. I'd just replace the upper control arm (tension link) bushings or the whole link with Meyle HD if you're going to stick with RFT's; they're harder durometer rubber than oem but not as hard as M3 and will provide better steering and braking feel.
2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, KW/M3 susp, Apex Arc 8, Mich PSS