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BMW 3 Series (E90) Tie Bars
The BMW 3 Series (E90) lower tie reduces the non-pivoting movement of the BMW 3 Series (E90) control arms and makes the subframe stiffer. This lessens the distortion of the BMW 3 Series (E90) lower suspension, which is useful during hard cornering. In general it, it improves the handling and control of the vehicle.