AST astASTALS-21-004 BMW G87 M2 / G80 M3 / G81 / G82 M4 / G83 M4 Adjustable Lowering Springs

The AST Adjustable Lowering Springs let you fine-tune your ride height even after installation, offering unmatched flexibility. These vehicle-specific springs lower your car’s center of gravity while keeping the comfort of OEM springs. Crafted from premium materials on advanced Wafios coiling machines, their progressive design balances a lowered stance with improved performance. Designed as a direct OEM replacement and made in the Netherlands, these springs deliver precision, quality, and the perfect mix of comfort and performance. Set of AST height adjustable Lowering Springs. With this set of Lowering Springs, you’re not limited to a fixed lowering range. Thanks to the AST height adjuster, you can fine-tune your ride height even after the kit has been installed.

• Set of AST height adjustable Lowering Springs. With this set of Lowering Springs, you’re not limited to a fixed lowering range.

AST adjustable lowering springs provide a height-adjustable solution for supported BMW applications. The included AST height adjuster allows the ride height to be fine-tuned after installation rather than limiting the vehicle to a fixed lowering range. Their progressive spring design is intended to balance a lowered stance, improved performance, and the comfort associated with OEM springs.

Designed as a direct OEM replacement, these vehicle-specific springs lower the vehicle’s center of gravity while maintaining everyday ride comfort. The springs are manufactured in the Netherlands from premium materials using Wafios coiling machines. The listed lowering range is 20–46 mm at the front and 10–36 mm at the rear.

Key Features & Performance Benefits

• Height Adjustable: Fine-tune ride height even after the springs have been installed.
• Progressive Design: Balances a lowered stance with improved performance and OEM-like comfort.
• Lowered Center of Gravity: Supports the vehicle’s lowered ride height and performance-focused setup.
• Direct OEM Replacement: Vehicle-specific spring design for the listed BMW applications.

Key Product Specifications & Technical Data

• Brand: AST
• Part Number: astASTALS-21-004
• Product Type: Adjustable lowering spring set
• Front Lowering Range: 20–46 mm
• Rear Lowering Range: 10–36 mm
• Spring Design: Progressive
• Manufacturing Location: Netherlands
• Manufacturing Equipment: Wafios coiling machines

What's Included in the Box

• Set of AST height-adjustable lowering springs

Fitment

Listed fitment includes 2021–2023 BMW M3 and 2021–2022 BMW M4 applications. The product name also identifies BMW G87 M2, G80 M3, G81, G82 M4, and G83 M4 applications.

Fitments:
2021 BMW M3 Base
2021 BMW M3 Competition
2021 BMW M4 Base
2021 BMW M4 Competition
2022 BMW M3 Base
2022 BMW M3 Competition
2022 BMW M3 Competition xDrive
2022 BMW M4 Base
2022 BMW M4 Competition
2023 BMW M3 Base
2023 BMW M3 Competition
2023 BMW M3 Competition xDrive
2023 BMW M4 Base
2023 BMW M4 Competition

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1