The reason these exist is straightforward: the G22 and G26 run a multi-link rear suspension with no factory camber adjustment built into the upper arm position. When you lower the car or push it on track, rear camber goes negative and stays there. The OEM arm is fixed length, so there is nothing to adjust at the alignment rack. These Godspeed arms replace that fixed arm with a threaded, length-adjustable unit with spherical bearing ends, which gives your alignment tech something to actually work with. The spherical bearings also eliminate the compliance you get with rubber bushing arms, meaning the camber setting you dial in at the alignment rack is the camber setting that stays there under load instead of shifting around through the corner.

Fitment Information

• BMW 4 Series 430i Coupe G22 RWD (2020, 2021, 2022, 2023, 2024), all trims, not for air suspension
• BMW 4 Series 430i xDrive Coupe G22 AWD (2020, 2021, 2022, 2023, 2024), all trims, not for air suspension
• BMW 4 Series M440i Coupe G22 RWD (2020, 2021, 2022, 2023, 2024), all trims, not for air suspension
• BMW 4 Series M440i xDrive Coupe G22 AWD (2020, 2021, 2022, 2023, 2024), all trims, not for air suspension
• BMW 4 Series 430i Convertible G23 RWD (2021, 2022, 2023, 2024), all trims, not for air suspension
• BMW 4 Series 430i xDrive Convertible G23 AWD (2021, 2022, 2023, 2024), all trims, not for air suspension
• BMW 4 Series M440i Convertible G23 RWD (2021, 2022, 2023, 2024), all trims, not for air suspension
• BMW 4 Series M440i xDrive Convertible G23 AWD (2021, 2022, 2023, 2024), all trims, not for air suspension
• BMW 4 Series 430i Gran Coupe G26 RWD (2022, 2023, 2024), all trims, not for air suspension
• BMW 4 Series 430i xDrive Gran Coupe G26 AWD (2022, 2023, 2024), all trims, not for air suspension
• BMW 4 Series M440i Gran Coupe G26 RWD (2022, 2023, 2024), all trims, not for air suspension
• BMW 4 Series M440i xDrive Gran Coupe G26 AWD (2022, 2023, 2024), all trims, not for air suspension
• BMW i4 eDrive40 Gran Coupe G26 RWD (2022, 2023, 2024), not for air suspension
• BMW i4 M50 Gran Coupe G26 AWD (2022, 2023, 2024), not for air suspension

Fitment Note: These rear upper camber arms cover all trim levels of the BMW 4 Series G22 Coupe, G23 Convertible, and G26 Gran Coupe across both RWD and xDrive AWD configurations. The G26 Gran Coupe platform also encompasses the fully electric BMW i4, which shares the same rear suspension architecture. These arms are not designed for vehicles equipped with air suspension or for vehicles running extreme negative camber associated with a stance setup. If your 4 Series has the optional Adaptive M Suspension or M Sport suspension, confirm with Godspeed before ordering as adaptive damper systems may affect installation. 

Specs and Features

• Godspeed Part Number: AK-228
• Sold as a pair (driver side and passenger side rear upper camber arms)
• Adjustable camber correction for rear axle geometry
• Adjustment range: approximately +/- 3 degrees of camber
• Spherical bearing ends replace OEM rubber bushings for direct, accurate geometry response with no flex or deflection under load
• High tensile steel alloy construction
• Corrosion resistant finish
• Direct bolt-on replacement using factory mounting points
• No installation instructions included, professional installation required
• Wheel alignment required after installation
• Not intended for use with excessive negative camber or stance applications
• Not compatible with air suspension
• 1-year warranty when installed by a professional

Pairs well with:

• Rev9 Hyper Street II Coilovers for BMW 430i G22/G23/G26 RWD (2022-2024) Lowering the G22 platform shifts rear camber out of spec, which is exactly what these Godspeed arms are built to correct. Pairing coilovers with adjustable rear camber arms at the same time means you can get the car aligned properly right out of the gate instead of fighting geometry issues after the drop.

Product Description