Let us know how easy/difficult the front control arm bushings are to swap out. I suspect that they aren't that easy to swap out, but I may be wrong. Also according to the HP Autowerks website these bushings are stiffer than the OEM bushings, but not as stiff as the M3 bushings that come with the M3 control arms. Still for the price they should be an improvement over the stock bushings.
2009 BMW LeMans Blue 135i/Dinan Stage 2 software upgrade/Alufelgen SF-71s/M3 suspension pieces/Koni Sport adjustable dampers/ETS FMIC