What is the main benefit of installing these AST lowering springs?

These springs lower your vehicle's center of gravity by 30mm, which can improve handling and give your car a more aggressive stance. They are designed to do this while still preserving a comfortable ride quality close to the original equipment.

What does the lifetime warranty cover?

AST provides a lifetime warranty against breaking for these lowering springs. This ensures you have peace of mind knowing the springs are built to last.

Do these springs come with any other hardware or components?

This product includes a set of AST lowering springs. It is recommended to consult the manufacturer's installation guide or a professional mechanic to determine if any additional hardware or components are needed for installation on your specific vehicle.

AST BMW 2018+ M340 (G20) Lowering Springs 30mm drop

Specifications

Brand: AST
Part #: ASTLS-21-031
UPC: astASTLS-21-031

AST BMW 2018+ M340 (G20) Lowering Springs 30mm drop

Name: AST BMW 2018+ M340 (G20) Lowering Springs 30mm drop
Brand: AST
Price: 397.24 USD
Availability: InStock

$397.24

On Backorder — Expected to ship by May 29, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

AST BMW 2018+ M340 (G20) Lowering Springs 30mm drop. Lowers center of gravity while keeping OEM comfort.

Key Features

Fits 2018+ BMW M340i (G20) models.
Lowers the vehicle's center of gravity by 30mm.
Designed to maintain a comfortable ride similar to OEM springs.
Cold-coiled on Wafios coiling machines for a well-built product.
Features a progressive spring design for a balance of lowering and performance.
Direct replacement for factory springs.

These lowering springs are designed for the 2018+ BMW M340i (G20) model. Please verify fitment for your specific vehicle configuration.

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Product Details

AST is a well-known name for creating solid suspension components, and these lowering springs are a great example of their work for your 2018+ BMW M340i (G20). They're designed to directly replace your factory springs, giving you that lower center of gravity that improves handling without sacrificing too much of the comfortable ride you expect from the original equipment.

These springs are cold-coiled using Wafios coiling machines, which are considered top-tier for this kind of work, ensuring a well-built part. The progressive design means they work to balance lowering your car with enhancing its performance. You get a noticeable 30mm drop, which really helps tighten up the car's stance and feel on the road. Plus, AST backs these with a lifetime warranty against breaking, so you can install them with confidence.