AST Suspension Lowering Springs - 21+ BMW G80 M3 - ASTLS-21-080

The AST Suspension Lowering Springs for the 2021+ BMW G80 M3 (ASTLS-21-080) are a purpose-built, vehicle-specific drop-in spring upgrade designed to lower your G80 M3's center of gravity while preserving everyday drivability. Engineered specifically for the G80 platform and developed to work seamlessly with the factory dampers, these springs are a go-to choice for G80 M3 owners who want a meaningful suspension upgrade without committing to a full coilover kit.

Key Features & Benefits

• Vehicle-Specific Engineering: Developed and calibrated exclusively for the BMW G80 M3 platform — not a universal spring — so geometry, spring rate progression, and ride height are dialed in for this exact application.
• Progressive Spring Design: The progressive coil design strikes a balance between lowering performance and retained ride comfort, meaning you get a sportier stance and improved handling without the harsh, jarring ride of a straight-rate racing spring.
• Direct OEM Replacement: These springs are a direct bolt-in replacement for the factory OEM springs, requiring no modification to the stock strut or shock assembly — making installation straightforward for any competent shop or experienced DIYer.
• Compatible with Stock Dampers: Developed and tested specifically to work flawlessly with the G80 M3's stock dampers, so you can run these springs even before upgrading to aftermarket shocks.
• Lowering Range of 20mm–60mm: AST's lowering spring lineup covers a range from 20mm to 60mm of drop depending on the application, reducing center of gravity for improved cornering and a more aggressive stance.
• Premium Materials & Manufacturing: Crafted from premium materials using Wafios coiling machines — industrial-grade equipment used by leading spring manufacturers — and cold coiled for consistent performance.
• Lifetime Warranty Against Breaking: AST backs these springs with a lifetime warranty against breakage, giving you long-term peace of mind on the street or track.
• Improved Handling: By lowering the vehicle's center of gravity, these springs contribute to reduced body roll and more responsive cornering behavior compared to the stock spring setup.

Specifications

• Part Number: ASTLS-21-080
• Brand: AST Suspension
• Spring Design: Progressive
• Manufacturing Process: Cold coiled, produced on Wafios coiling machines
• Lowering Range: 20mm–60mm (application-dependent)
• Damper Compatibility: Designed and tested for use with OEM/stock dampers
• Warranty: Lifetime warranty against breaking
• Application Start Date: November 2020 (11/2020 production onward)

Fitment

The AST ASTLS-21-080 lowering springs are confirmed to fit the following BMW G80 M3 variants:

• 2021–2024 BMW M3 (G80) — Base
• 2021–2024 BMW M3 (G80) — Competition
• 2022–2024 BMW M3 (G80) — Competition xDrive
• 2024 BMW M3 (G80) — CS

All fitments are for vehicles with the S58 3.0L engine. Coverage begins with vehicles produced from November 2020 onward. If you are unsure whether your specific build date or trim level is covered, contact the ThreePiece.us fitment team before ordering — fitment verification is always free.

Note: This spring is specific to the G80 M3 sedan platform. Verify separately for G82 M4 or other G-chassis variants before purchasing.

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Frequently Asked Questions

Q: Will these lowering springs work with my G80 M3's factory shocks and struts?
A: Yes. The AST ASTLS-21-080 springs were specifically developed and tested to work with the stock OEM dampers on the G80 M3. You do not need to upgrade your shocks to run these springs, though many enthusiasts eventually pair them with aftermarket dampers for the full suspension upgrade.

Q: Which G80 M3 trims and years are compatible?
A: Confirmed fitment includes the 2021–2024 BMW M3 Base, 2021–2024 M3 Competition, 2022–2024 M3 Competition xDrive, and the 2024 M3 CS — all with the S58 engine. Coverage applies to vehicles built from November 2020 onward.

Q: Do these springs come with a warranty?
A: Yes. AST backs the ASTLS-21-080 with a lifetime warranty against breaking.

Q: How do I install these springs on my G80 M3?
A: These are a direct OEM-replacement spring, meaning they install into the existing strut and shock assemblies without modification. A professional alignment is strongly recommended after any spring swap to ensure handling geometry is set correctly. Most shops familiar with BMW performance suspension will be comfortable with this installation.