Lot's of people replace those links or bushings with M3 or HD parts to reduce brake shimmy, tramilining and improve steering response when switching to conventional tires. The OE bushings are weak to make ride quality acceptable for stiff, heavy rft's.
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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
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