What is the main benefit of installing these lowering springs?

These springs lower your vehicle's center of gravity by 40mm front and rear. This can lead to a sportier stance and improved handling during cornering, while still aiming to maintain a comfortable ride.

Are these springs compatible with my original shocks and struts?

These springs are designed as a direct replacement for your OEM springs. While they are intended to work with factory shocks and struts, it's always recommended to consult the manufacturer's installation guide or a professional for optimal compatibility and performance.

What does the lifetime warranty cover?

The lifetime warranty covers the springs against breaking. This ensures peace of mind for the lifespan of the product, provided it is installed and used correctly.

AST Lowering Springs 40mm/40mm | AST LS-21-036

Name: AST 07/2013-10/2020 BMW 4 Lowering Springs - 40mm/40mm
Brand: AST
SKU: ast-ast-07-2013-10-2020-bmw-4-lowering-springs-40mm-40mm-t14-707557
Price: 293.22 USD
Availability: InStock

AST 07/2013-10/2020 BMW 4 Lowering Springs - 40mm/40mm

$293.22

Only 1 left in stock

AST Lowering Springs for 07/2013-10/2020 BMW 4 Series. Lowers center of gravity by 40mm front and rear while maintaining comfort.

Key Features

Fits 07/2013-10/2020 BMW 4 Series (435i, 440i, 420D, 425D F32).
Lowers vehicle center of gravity by 40mm front and 40mm rear.
Progressive spring design balances ride comfort with improved handling.
Cold-coiled on Wafios coiling machines for a well-built product.
Direct replacement for OEM springs.
Backed by a lifetime warranty against breaking.

Secure CheckoutFast Shipping631-982-0042

Product Details

These AST lowering springs are cold-coiled on Wafios coiling machines, a detail that speaks to their well-built nature. They are designed specifically for your 07/2013-10/2020 BMW 4 Series, offering a direct replacement for your factory springs. The goal here is to reduce your vehicle's center of gravity by 40mm in both the front and rear, which can lead to improved handling characteristics.

What's notable about these springs is their progressive design. This means they offer a firmer ride when you need it, like during spirited driving or cornering, but still provide a comfortable experience for everyday use, similar to your original equipment. They are crafted from premium materials to ensure durability and longevity on the road. This set is engineered to fit your specific BMW 4 Series model, ensuring a proper installation.

With a lifetime warranty against breaking, you can install these springs with confidence. They are a solid option if you're looking to lower your BMW 4 Series for a sportier stance and potentially enhanced performance without sacrificing too much of the ride comfort you're used to.