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The Wilwood AERO4 rear axle kit for 2007–2011 BMW E90 models replaces factory discs and uses the stock parking brake to work with front big brake upgrades. W4AR calipers, BP-10 pads, and 14.00" rotors are matched to OE master cylinder output and ABS for correct bias. The kit enhances stopping power, heat tolerance, and appearance for vehicles fitted with larger wheels, tires, or suspension changes.
Wilwood AERO4 Rear Kit 14.00 2007-2011 BMW E90 Series w/Lines
