What is the drop height for these AST lowering springs?

This specific set of AST lowering springs is designed to provide a 40mm drop at the front and a 40mm drop at the rear of your vehicle.

Are these springs compatible with my factory shocks?

These springs are designed as a direct replacement for your OEM springs and are intended to work with your original equipment shocks. However, for optimal performance and longevity, it's often recommended to consult with a suspension specialist regarding shock compatibility.

What does the lifetime warranty cover?

AST provides a lifetime warranty against breaking for these lowering springs. This ensures peace of mind regarding the structural integrity of the springs themselves.

Specifications

Brand: AST
Part #: ASTLS-21-034
UPC: ASTLS-21-034

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

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-t14-707553
Price: 320.58 USD
Availability: BackOrder

$320.58

On Backorder

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

AST 07/2013-10/2020 BMW 4 Lowering Springs - 40mm/40mm. Lowers your vehicle's center of gravity while keeping OEM comfort.

Key Features

Fits 07/2013-10/2020 BMW 4 Series.
Lowers the vehicle's center of gravity.
Maintains a comfortable ride similar to OEM springs.
Cold-coiled on Wafios coiling machines for a well-built product.
Progressive spring design balances lowering and performance.
Offers a 40mm drop front and rear.

These lowering springs are designed for the BMW 4 Series manufactured between July 2013 and October 2020.

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About this part

Product Details

AST is a well-known name for performance suspension components. These lowering springs are specifically developed for your BMW 4 Series (07/2013-10/2020) to reduce its center of gravity. They are a direct replacement for your factory springs, meaning they fit right in place of your original equipment.

These springs are cold-coiled using Wafios coiling machines, a detail that speaks to their well-built nature. Their progressive design aims to strike a good balance, lowering your ride height for improved handling characteristics without sacrificing too much of the comfortable ride you expect from OEM springs. This specific set offers a 40mm drop front and rear.

AST backs these springs with a lifetime warranty against breaking, so you can install them with confidence. If you're looking to lower your BMW 4 Series and improve its stance, these springs are a solid option.