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AST AST 11/2020- BMW 4 Lowering Springs - 30mm/25mm
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AST 11/2020- BMW 4 Lowering Springs - 30mm/25mm

AST
ASTASTLS-22-124
ASTLS-22-124
Lowering Springs
1 Units In Stock - Ships Next Business Day
$ 334.65 $ 301.19
$ 301.19

SKU: ASTLS-22-124

AST 11/2020+ BMW 4 Series Lowering Springs - 30mm Front / 25mm Rear

AST lowering springs drop the front 30mm and rear 25mm on 2021-2024 BMW 4 Series Coupe Convertible and Gran Coupe models while keeping OEM-level ride comfort. These direct OEM replacements lower the center of gravity for sharper handling and better road feel. Vehicle-specific progressive rates ensure balanced performance on models produced from November 2020.

Key Features

  • Precise Drop Amounts: 30mm front 25mm rear lowering matches BMW 4 Series geometry for improved stability without harshness
  • Progressive Spring Design: Varies rates for smooth daily driving and firm cornering response under load
  • Premium Construction: Wound on Wafios coiling machines from high-tensile spring steel for durability and consistent performance
  • Vehicle-Specific Engineering: Developed exclusively for BMW 4 Series fitment ensuring bolt-on installation and factory alignment
  • Lifetime Warranty: Covered against breakage and sagging for long-term reliability on the road or track

Product Notes

  • Complete set of four springs front pair and rear pair included
  • Inspect shocks and consider upgrades for full performance gains
  • Box dimensions 18 x 7 x 7 inches product weight 21 lbs

Installation Notes

  • Professional installation recommended.
  • Use spring compressor tool for safe removal of OEM springs.
  • Direct fit with factory struts shocks and control arms no modifications needed.

This Part Fits

Year Make Model Submodel
2021-2024 BMW 4 Series 430i Coupe
2021-2024 BMW 4 Series 430i xDrive Coupe
2021-2024 BMW 4 Series M440i Coupe
2021-2024 BMW 4 Series M440i xDrive Coupe
2021-2024 BMW 4 Series 430i Convertible
2021-2024 BMW 4 Series 430i xDrive Convertible
2021-2024 BMW 4 Series M440i Convertible
2021-2024 BMW 4 Series M440i xDrive Convertible
2022-2024 BMW 4 Series Gran Coupe 430i
2022-2024 BMW 4 Series Gran Coupe 430i xDrive
2022-2024 BMW 4 Series Gran Coupe M440i
2022-2024 BMW 4 Series Gran Coupe M440i xDrive

Why Choose AST?

  • Proven across 3000 vehicle models from 1966 to 2023
  • High-quality materials resist corrosion and fatigue
  • Exact engineering preserves OEM comfort with performance gains

Frequently Asked Questions

  • Q: Does this fit my 2022 BMW M440i xDrive Coupe?
    A: Yes ASTLS-22-124 fits all listed 2021-2024 BMW 4 Series Coupe Convertible and Gran Coupe submodels produced from 11/2020 including M440i xDrive with 30mm front 25mm rear drop.
  • Q: What material are the springs made from?
    A: High-tensile spring steel coiled on advanced Wafios machines for strength flexibility and corrosion resistance.
  • Q: What does the lifetime warranty cover?
    A: Full coverage against breakage and sagging under normal use contact manufacturer for claims.

Shipping & Handling

  • Method: UPS Ground
  • Availability: Special order typically ships within 3-5 business days
  • Packaging: Secure box 18 x 7 x 7 inches
  • Weight: 21 lbs

Request For Information

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