E82, E9x Front Upper Strut Mount Reinforcement Plates
E82, E9x FRONT UPPER STRUT MOUNT REINFORCEMENT PLATE Overview Similar to the E36 and E46 chassis, the E82/E9x front strut towers are notoriously weak. With the addition of aftermarket springs/suspension comes more stress to the factory front strut towers which causes deformation and eventually makes the strut mount crack and mushroom open. For this reason, BMW offered an upper strut mount reinforcement plate from the factory as "the poor road package" (part number 51717036781) when it came to the E46 chassis. The plate adds another layer of 11 gauge metal to reinforce the strut mounting point on the chassis. This is mandatory if you have an aftermarket performance suspension setup on your E8x/E9x. Stiff suspension + strut bar can lead to cracked strut tower housings on the E8x/E9x. These reinforcement plates can help you prevent expensive damage. Blown shocks and stiff suspensions will cause the sheet metal to pop up due to more energy being transferred. Highly recommended upgrade to d