Bilstein B1 12-251377 Front Strut Top Mount Support Bearing Plate 3-Bolt 3-Hole (Upper Shock Mount/Top Hat) for BMW 1 2 3 4 Series F20 F21 F22 F23 F30 F31 F34 Intake Manifold Dyno-tested on BMW 328i: up

Dyno-tested on BMW 328i: up to +13

more aggressive nose with these genuine 3DDesign CFRP lower blades that mount beneath the 3DDesign front lip

maintaining smooth height adjustment over time

complete with textured inserts for superior traction and tasteful logo etching for a true motorsport-inspired look

Monotube gas pressure technology for consistent damping and fade-free performance

Bilstein B1 12-251377 Front Strut Top Mount Support Bearing Plate 3-Bolt 3-Hole (Upper Shock Mount/Top Hat) for BMW 1 2 3 4 Series F20 F21 F22 F23 F30 F31 F34 Intake Manifold Dyno-tested on BMW 328i: upBilstein B1 Front Upper Shock Mount Bearing Plate, 3 hole, BMW F Series Part No. 12 251377 Part numbers: 12 251377, BILSTEIN 12 251377 EAN: 4025258763695 UPC: 651860767031 Refresh your BMW chassis with the Bilstein B1 front upper mount and bearing assembly. This OE spec mounting plate with integrated bearing cures play in the front suspension, brings back crisp steering feel and eliminates unwanted knocks. Engineered by Bilstein to match factory