AST Adjustable Lowering Spring Kit For BMW G21 M340i xDrive/M340i xDrive plug in Hybrid | ALS Kit
Description
Achieve the perfect stance and ride balance with the AST Adjustable Lowering Spring Kit for the BMW G21 M340i xDrive and M340i xDrive Plug-In Hybrid. This premium ALS kit allows you to fine-tune your vehicle’s height to your exact preference, offering both aesthetic appeal and enhanced performance without compromising everyday comfort.
Unlike fixed lowering springs, AST’s adjustable design uses precision-engineered height adjusters that let you set your desired ride height even after installation. Developed in the Netherlands using high-grade spring steel and advanced Wafios coiling technology, these springs deliver exceptional durability, consistency, and ride refinement.
The progressive-rate design ensures an ideal balance between comfort and handling — reducing body roll, improving cornering response, and maintaining the refined feel expected from OEM-quality components. Whether you’re after a subtle drop or a sportier stance, AST’s adjustable system provides the flexibility to make your BMW look and perform exactly how you want.
Key Features
-
Designed for BMW G21 M340i xDrive & M340i xDrive Plug-In Hybrid
-
Fully adjustable ride height – fine-tune your drop even after installation
-
Progressive-rate spring design for optimal comfort and control
-
Reduces body roll and enhances handling without sacrificing ride quality
-
Manufactured in the Netherlands using premium-grade materials
-
Developed with Wafios coiling machines for precision and consistency
-
Direct OEM replacement for straightforward installation
-
Maintains compatibility with factory dampers and adaptive systems
-
Front lowering range: ≈ 5–35mm
-
Rear lowering range: ≈ 5–40mm
Compatibility
-
BMW G21 M340i xDrive Touring (2020–2025)
-
BMW G21 M340i xDrive Plug-In Hybrid Touring (2020–2025)
Will it fit my car?
We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.
Shipping
All orders made through MOD Central will be passed immediately to the supplier (R44 Performance) that has ships the item. You will get an email from them on the point of sale about processing and dispatch time.
Shipping Costs:
The cost of shipping will be calculated at checkout based on the destination, weight of the product and which vendor/vendors you are buying from.
Shipping Providers:
All our vendors work with trusted shipping partners to ensure your products are delivered safely. However, we are not responsible for any shipping delays, damages, or losses.
International Shipping:
Many of our vendors offer international shipping, but please be aware that additional customs fees or import taxes may apply. These charges are the responsibility of the buyer.
Tracking Information:
Once your order has been dispatched, you will receive a confirmation email with tracking details from the vendor your product was purchased from. If you have not received your tracking information, please contact the vendor with your order number.
Returns/Warranty
Eligibility:
All return eligibility will be specific to the vendor.
Return & Refund Process:
To initiate a return, please contact the vendor you purchased the product from with your order number and reason for return. Their team will provide further instructions.