SKU: ASTLS-22-307
AST 07/2021- BMW 4 Lowering Springs – 30mm/30mm
AST Lowering Springs provide a 30mm drop front and rear for 07/2021+ BMW 4 Series models including G22 Coupe G23 Convertible and G26 Gran Coupe. These direct OEM replacements lower the center of gravity for improved handling while maintaining familiar OEM comfort levels. Progressive rate design enhances cornering stability and ride quality on daily drives or spirited runs.
Key Features
- 30mm Front/Rear Drop: Lowers ride height evenly to sharpen handling reduce body roll and improve aesthetics without harshness
- Progressive Spring Rate: Delivers linear response building compliance over OEM for balanced performance and comfort across varied road conditions
- Vehicle-Specific Engineering: Developed exclusively for BMW 4 Series ensuring precise fitment and OEM-like function with stock shocks
- Premium Spring Steel: Coiled on Wafios machines for superior strength fatigue resistance and longevity under high-stress use
- Lifetime Warranty: Guaranteed against breakage providing long-term reliability and confidence for every mile driven
Product Notes
- Special order item typically ships within 3-5 business days of order placement
- Pair with OEM or upgraded shocks for optimal results no strut modifications required
- Packaged securely to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Bolt-on replacement uses factory mounting points and hardware
- Compatible with OEM dampers and most aftermarket coilovers
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2022-2024 | BMW | 430i | Coupe (G22) |
| 2022-2024 | BMW | 430i xDrive | Coupe (G22) |
| 2022-2024 | BMW | M440i | Coupe (G22) |
| 2022-2024 | BMW | M440i xDrive | Coupe (G22) |
| 2022-2024 | BMW | 430i | Convertible (G23) |
| 2022-2024 | BMW | 430i xDrive | Convertible (G23) |
| 2023-2024 | BMW | M440i | Convertible (G23) |
| 2023-2024 | BMW | M440i xDrive | Convertible (G23) |
| 2022-2024 | BMW | 430i | Gran Coupe (G26) |
| 2022-2024 | BMW | 430i xDrive Gran Coupe | (G26) |
| 2022-2024 | BMW | M440i Gran Coupe | (G26) |
| 2022-2024 | BMW | M440i xDrive Gran Coupe | (G26) |
Why Choose AST?
- Proven across 3000+ vehicle models from 1966 to 2023 for broad compatibility
- High-tensile materials coiled on advanced Wafios equipment for unmatched durability
- Vehicle-specific tuning matches OEM geometry for seamless integration and performance
Frequently Asked Questions
- Q: Will these fit my 2022 BMW M440i xDrive Coupe?
A: Yes fits all 07/2021+ BMW 4 Series G22 G23 G26 models listed in fitment table including M440i xDrive Coupe with 30mm drop front/rear. - Q: What material are the springs made from?
A: High-grade spring steel coiled on precision Wafios machines for resistance to sagging corrosion and fatigue. - Q: What does the lifetime warranty cover?
A: Full coverage against spring breakage under normal use contact manufacturer for claims with proof of purchase.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Protective cardboard box 18 x 8 x 8 inches
- Weight: 22 lbs
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