SKU: ASTLS-20-320 | UPC: astASTLS-20-320
AST Suspension 2020-2024 BMW M340i xDrive Lowering Springs 30mm/30mm
AST Lowering Springs ASTLS-20-320 deliver a 30mm drop front and rear for 2020-2024 BMW M340i xDrive models lowering the center of gravity for improved handling and stability. These vehicle-specific springs replace OEM units directly maintaining ride comfort with progressive spring rates. Crafted on Wafios coiling machines from high-strength steel they enhance cornering response and aesthetics without sacrificing daily drivability.
Key Features
- 30mm Front and Rear Drop: Reduces center of gravity by 30mm on both axles for sharper turn-in and reduced body roll during spirited driving
- Progressive Spring Design: Provides linear response that absorbs bumps like OEM while firming up under load for track or canyon performance
- Cold-Coiled on Wafios Machines: Ensures precise tolerances and durability using premium high-tensile steel for consistent performance over thousands of miles
- Direct OEM Replacement: Bolt-on fitment requires no modifications preserving factory alignment and suspension geometry
- Lifetime Warranty: Backed against sagging or breaking giving long-term reliability for BMW M340i xDrive owners
Product Notes
- Special order item confirm stock before purchase
- Pair with camber plates for optimal alignment after install
- Ships in protective packaging weight approximately 12 lbs box dimensions 18 x 8 x 8 inches
Installation Notes
- Professional installation recommended.
- Requires standard spring compressor tool and alignment post-install
- Compatible with factory dampers and control arms no additional hardware needed
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2024 | BMW | M340i | xDrive Base |
Why Choose AST Suspension?
- Trusted by racers and enthusiasts for precision suspension components
- Over 3000 vehicle applications from 1966 to 2024 proven across decades
- Vehicle-specific engineering matches BMW M340i xDrive dynamics exactly
Frequently Asked Questions
-
Q: Will these fit my 2021 BMW M340i xDrive?
A: Yes ASTLS-20-320 fits all 2020-2024 BMW M340i xDrive Base models with direct OEM replacement confirmed on AST and Turner Motorsport sites -
Q: What material are the springs made from?
A: High-tensile chrome-silicon steel cold-coiled on Wafios machines for superior fatigue resistance and consistent rates -
Q: What does the lifetime warranty cover?
A: Full coverage against manufacturer defects including sagging or breaking under normal use contact AST for claims
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Securely boxed set dimensions 18 x 8 x 8 inches
- Weight: 12 lbs shipping weight
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