The biggest point of unwanted deflection in the front suspension of any E8X 1 Series or E9X 3 Series is the front radius arm bushes. The originals are made of soft rubber, where as Powerflex’s 95A polyurethane replacements provide a stiffer, far more stable mounting for the radius arm.

Available only in Powerflex’s harder ‘Black Series’ material. Replaces BMW part numbers 3112763719 and 31102283579. Priced per pair, part number 1 on diagram.