AST ASTALS-21-015 ALS Adjustable Lowering Springs for 19-24 BMW X3M/X4M F97/F98

Vehicle Fitment

• 2019-2024 BMW X3M (F97), 3.0L S58 I6 Twin Turbo, RWD and AWD
• 2019-2024 BMW X3M Competition (F97), 3.0L S58 I6 Twin Turbo, AWD
• 2019-2024 BMW X4M (F98), 3.0L S58 I6 Twin Turbo, RWD and AWD
• 2019-2024 BMW X4M Competition (F98), 3.0L S58 I6 Twin Turbo, AWD

Fitment Notes

• Compatible with factory Adaptive M Suspension and OEM EDC -- full functionality retained
• Direct OEM spring replacement -- uses factory perches and top mounts
• Height adjustable post-installation via adjuster ring -- no spring removal required
• Wheel alignment required after installation and after any height adjustment
• Set of 4 springs

Features

• 0-40mm front / 0-35mm rear adjustable lowering range
• Progressive spring rate -- improved handling and reduced body roll
• Post-installation height adjustment without removing springs
• Premium chromium-silicone wire, cold-wound on Wafios coiling machines
• Shot-peened, phosphate-treated, powder-coated
• Made in the Netherlands
• Lifetime warranty

Specifications

• Part Number: ASTALS-21-015
• Series: ALS (Adjustable Lowering Springs)
• Front lowering range: 0-40mm
• Rear lowering range: 0-35mm
• Spring rate: Progressive
• Material: Chromium-silicone wire
• Quantity: Set of 4 springs
• Origin: Netherlands
• Warranty: Lifetime

Included Components

• 2x Front adjustable lowering springs
• 2x Rear adjustable lowering springs
• 4x Adjuster rings

Product Description

The AST ASTALS-21-015 is a set of Adjustable Lowering Springs for the 2019-2024 BMW X3M (F97) and X4M (F98), including Competition models in RWD and AWD. Unlike fixed-height springs, the ALS kit provides a continuous 0-40mm front / 0-35mm rear lowering range adjustable via an adjuster ring without removing the springs from the vehicle -- dial in ride height for street use, track days, or seasonal changes at any time after installation.

Fully compatible with factory Adaptive M Suspension EDC -- all damper modes operate normally. Springs are wound from premium chromium-silicone wire on Wafios machines, shot-peened for fatigue resistance, and finished in phosphate and powder coat. Made in the Netherlands. Backed by AST's lifetime warranty.