Originally Posted by Z K
I replaced subframe bushings before on a previous RWD car and I remember that made a big difference in how the car felt. It also didn't really add any NVH to the car besides the rear feeling firmer. But in that case I used polyurethane bushings so it isn't as firm as a solid replacement.
Are there any firmer but not fully solid bushings that can be used on the M3?
Yes. Powerflex polyurethane and BMW Motorsport group n.
2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS