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AST AST Suspension Lowering Springs - 2021+ BMW G82 M4 30mm/30mm
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AST Suspension Lowering Springs - 2021+ BMW G82 M4 30mm/30mm

AST
ASTASTLS-21-182
astASTLS-21-182
Lowering Springs
20+ Units In Stock - Ships Next Business Day
$ 480.40 $ 432.36
$ 432.36

SKU: ASTLS-21-182 | UPC: astASTLS-21-182

AST Suspension Lowering Springs - 2021+ BMW G82 M4 30mm/30mm

AST Lowering Springs ASTLS-21-182 deliver a 30mm drop front and rear on 2021-2024 BMW M4 models including Base, Competition, Competition xDrive, CSL and M440i xDrive Coupe. These direct OEM replacements lower the center of gravity for sharper handling while retaining familiar ride comfort. Vehicle-specific design ensures precise fit and progressive rates for balanced performance on street or track.

Key Features

  • 30mm Front/Rear Drop: Reduces center of gravity for better cornering grip and aggressive stance without sacrificing daily drivability.
  • Progressive Spring Rates: Provides smooth compliance over bumps combined with firm control during aggressive driving.
  • Cold-Coiled on Wafios Machines: Ensures consistent tolerances and strength using high-tensile chrome-silicon steel construction.
  • Shot-Peened Finish: Increases fatigue resistance for long-term durability under high stress loads.
  • Lifetime Warranty: Covers defects and breakage, backed by engineering trusted across 3000+ vehicle models since 1966.

Product Notes

  • Direct replacement for factory springs, no additional modifications required.
  • Designed for OEM shock compatibility, maintains factory alignment specs.
  • Packaged as complete set of four springs for easy ordering and install.

Installation Notes

  • Professional installation recommended.
  • Full vehicle alignment required after installation to restore proper camber and toe.
  • Compatible with factory struts, mounts and control arms, no special hardware needed.

This Part Fits

Year Make Model Submodel
2021-2024 BMW M4 Base
2021-2024 BMW M4 Competition
2021-2024 BMW M4 Competition xDrive
2023-2024 BMW M4 CSL
2021-2024 BMW M440i xDrive Base

Why Choose AST Suspension?

  • Proven track record with applications for 3000+ models from 1966 to 2024.
  • High-tensile chrome-silicon steel construction for repeated high-performance use.
  • Precision vehicle-specific tuning matches OEM geometry for plug-and-play results.

Frequently Asked Questions

  • Q: Do these fit 2022 BMW M4 Competition xDrive G82?
    A: Yes, perfect fit for 2021-2024 BMW M4 Competition xDrive Coupe, direct OEM spring swap.
  • Q: What material and manufacturing process?
    A: High-tensile chrome-silicon steel, cold-coiled on Wafios CNC machines, shot-peened for superior fatigue life.
  • Q: What does the lifetime warranty cover?
    A: Protects against sagging, cracking or breaking under normal use, no registration needed.

Shipping & Handling

  • Method: UPS Ground or FedEx Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Set of 4 springs in protective cardboard box, 18 x 7 x 7 inches
  • Weight: 11 lbs

Request For Information

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