AST Performance Lowering Springs for BMW G80 M3 and G82 M4

Description

The AST Suspension Lowering Springs – BMW G80 M3 / G82 M4 are high-performance progressive-rate coil springs designed to lower your BMW G8x (including Competition and xDrive variants) for enhanced handling, reduced body roll, and a sharper, more aggressive stance while retaining comfortable street performance. Built from premium high-tensile chromium-silicone wire and manufactured with precision winding and heat treatment, these springs deliver a stable, consistent drop that improves response and cornering balance. They work with the vehicle’s original damping system and provide a direct replacement for factory springs.

Fitment Notes

• Designed for BMW G80 M3 / G82 M4 models including Competition (RWD & xDrive; AWD). 

• Compatible with model years 2021 and newer.

• Direct-fit replacement for OEM springs — no shock conversion required; designed to work with stock dampers. 

• Not adjustable — fixed lowering springs; alignment required after install.

• Progressive design preserves ride quality while enhancing performance.

Included

• Four (4) AST Suspension lowering springs (front and rear)

• Protective powder coat finish for corrosion resistance

• Installation guidance (general instructions)

Product Specs

• Part Number: ASTLS-21-080

• Material: Premium high-tensile chromium-silicone spring wire — cold wound, heat treated, shot peened and phosphate treated for durability. 

• Lowering Range:

  • Front: Approx. 30–32 mm (~1.2–1.3″) below stock ride height.

  • Rear: Approx. 15–25 mm (~0.6–1.0″) below stock ride height. 

• Spring Type: Progressive-rate performance coil springs.

• Compatibility: Works with stock electronic damping/suspension systems where present.

Product Features

• Enhanced stance and handling: Lowers the vehicle’s center of gravity for reduced body roll and more confidence-inspiring cornering.

• Direct OEM-fit design: Replaces factory springs without the need for additional shock conversion kits. 

• Progressive spring rates: Balanced design delivers sporty dynamics with respectable everyday comfort. 

• Premium construction: Cold-coiled, heat-treated, shot-peened, phosphate-treated, and powder-coated for long service life. 

• Electronic damping compatible: Works with the vehicle’s adaptive suspension (EDC) if applicable. 

• Improved visual stance: Reduces wheel gap for a more aggressive and purposeful appearance.

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