Adjustable control arms allow for fine tuning of a vehicle’s wheel alignment angles beyond what factory may allow or in most cases, leave no provisions to do so. Whether correcting angles to fully utilize a tire’s contact patch, fitting larger than factory wheels and tires back in side the fenders, or simply achieving factory alignment angles after modifying the vehicle’s ride height. Adjustable control arms serve a crucial purpose to any set-up.Megan Racing control arms are constructed of a Lightweight Steel-Alloy which is able to withstand the stresses of extreme competition these arms are powder coated with a 3-Stage process to ensure durability and protection against the elements. Incorporated turnbuckle style adjustability allows for fine tuning of the vehicle’s rear camber angles while spherical bushings help eliminate suspension slop over the soft (and tired) factory bushings increasing vehicle dynamic response while still insulating the majority of absorbed road noises. All hardware is treated to help prevent corrosion during the harshest weather conditions and are protected with a 1-year warranty against manufacturer defects.NOTE: Must be used in conjunction with MRC-BM-0521 to replace the Rear Upper “Front” Camber Arms.Applications:– BMW M2 G87 2023+– BMW M3 G80 2020+– BMW M4 G82 2020+Specifications & Features:-Location: Rear Top Rear Control Arm-Adjusts: Camber-Primary Arm Material: Aluminum-Bushing Type: Spherical -Reverse Threaded For Easy Adjustment-Direct Bolt-On -1-Year Warranty Against Manufacturer Defects