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.
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.
Four (4) AST Suspension lowering springs (front and rear)
Protective powder coat finish for corrosion resistance
Installation guidance (general instructions)
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.
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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