AST 18-Up BMW 3 Series G20/G21 Adjustable Lowering Springs — Front & Rear Set

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SKU: ASTASTALS-21-003
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Sale price$1,234.01 Regular price$1,235.00
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About AST

AST engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full AST lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

AST Adjustable Lowering Springs for BMW 3 Series G20/G21

Transform your BMW 3 Series G20/G21 (2019-2023) with AST's innovative Adjustable Lowering Springs. Unlike conventional lowering springs, this system features AST's unique height adjuster, allowing you to precisely dial in your desired ride height even after installation. This unparalleled flexibility ensures you can achieve the perfect stance and optimize your vehicle's center of gravity without compromising on comfort.

Engineered for Performance and Flexibility

  • Vehicle Specific Design: Developed exclusively for the 18-Up BMW 3 Series G20/G21 models, ensuring a perfect fit and optimal performance.
  • Adjustable Ride Height: Fine-tune your vehicle's stance with the integrated AST height adjuster, offering a custom lowering range.
  • Premium Materials: Crafted using high-quality materials and the finest Wafios coiling machines in the Netherlands, Europe, ensuring durability and longevity.
  • Progressive Spring Design: Balances a lowered ride height with enhanced performance and maintains a comfortable ride quality comparable to OEM springs.
  • Direct Replacement: Designed to replace your factory springs, simplifying the installation process.

Benefits of AST Adjustable Lowering Springs

Lowering your BMW not only enhances its aggressive aesthetic but also improves handling dynamics by reducing body roll and lowering the center of gravity. AST's adjustable system provides the ultimate control, allowing you to experiment with different heights to find the sweet spot for both looks and performance. These springs are the perfect solution for enthusiasts seeking a lowered look without sacrificing ride comfort or the ability to fine-tune their suspension setup.

Upgrade your BMW 3 Series with the precision and flexibility of AST Adjustable Lowering Springs. Experience the difference quality engineering makes. Available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2023 BMW 230i xDrive Base
2021-2023 BMW 330e xDrive Base
2019-2023 BMW 330i xDrive Base

Product Details

Product Description
Part Numbers
Sizing & Fit

About AST

AST engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full AST lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

AST Adjustable Lowering Springs for BMW 3 Series G20/G21

Transform your BMW 3 Series G20/G21 (2019-2023) with AST's innovative Adjustable Lowering Springs. Unlike conventional lowering springs, this system features AST's unique height adjuster, allowing you to precisely dial in your desired ride height even after installation. This unparalleled flexibility ensures you can achieve the perfect stance and optimize your vehicle's center of gravity without compromising on comfort.

Engineered for Performance and Flexibility

  • Vehicle Specific Design: Developed exclusively for the 18-Up BMW 3 Series G20/G21 models, ensuring a perfect fit and optimal performance.
  • Adjustable Ride Height: Fine-tune your vehicle's stance with the integrated AST height adjuster, offering a custom lowering range.
  • Premium Materials: Crafted using high-quality materials and the finest Wafios coiling machines in the Netherlands, Europe, ensuring durability and longevity.
  • Progressive Spring Design: Balances a lowered ride height with enhanced performance and maintains a comfortable ride quality comparable to OEM springs.
  • Direct Replacement: Designed to replace your factory springs, simplifying the installation process.

Benefits of AST Adjustable Lowering Springs

Lowering your BMW not only enhances its aggressive aesthetic but also improves handling dynamics by reducing body roll and lowering the center of gravity. AST's adjustable system provides the ultimate control, allowing you to experiment with different heights to find the sweet spot for both looks and performance. These springs are the perfect solution for enthusiasts seeking a lowered look without sacrificing ride comfort or the ability to fine-tune their suspension setup.

Upgrade your BMW 3 Series with the precision and flexibility of AST Adjustable Lowering Springs. Experience the difference quality engineering makes. Available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2023 BMW 230i xDrive Base
2021-2023 BMW 330e xDrive Base
2019-2023 BMW 330i xDrive Base

Product Details

Product Description

About AST

AST engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full AST lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

AST Adjustable Lowering Springs for BMW 3 Series G20/G21

Transform your BMW 3 Series G20/G21 (2019-2023) with AST's innovative Adjustable Lowering Springs. Unlike conventional lowering springs, this system features AST's unique height adjuster, allowing you to precisely dial in your desired ride height even after installation. This unparalleled flexibility ensures you can achieve the perfect stance and optimize your vehicle's center of gravity without compromising on comfort.

Engineered for Performance and Flexibility

  • Vehicle Specific Design: Developed exclusively for the 18-Up BMW 3 Series G20/G21 models, ensuring a perfect fit and optimal performance.
  • Adjustable Ride Height: Fine-tune your vehicle's stance with the integrated AST height adjuster, offering a custom lowering range.
  • Premium Materials: Crafted using high-quality materials and the finest Wafios coiling machines in the Netherlands, Europe, ensuring durability and longevity.
  • Progressive Spring Design: Balances a lowered ride height with enhanced performance and maintains a comfortable ride quality comparable to OEM springs.
  • Direct Replacement: Designed to replace your factory springs, simplifying the installation process.

Benefits of AST Adjustable Lowering Springs

Lowering your BMW not only enhances its aggressive aesthetic but also improves handling dynamics by reducing body roll and lowering the center of gravity. AST's adjustable system provides the ultimate control, allowing you to experiment with different heights to find the sweet spot for both looks and performance. These springs are the perfect solution for enthusiasts seeking a lowered look without sacrificing ride comfort or the ability to fine-tune their suspension setup.

Upgrade your BMW 3 Series with the precision and flexibility of AST Adjustable Lowering Springs. Experience the difference quality engineering makes. Available now at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2023 BMW 230i xDrive Base
2021-2023 BMW 330e xDrive Base
2019-2023 BMW 330i xDrive Base

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