What is the specific drop height for these springs?

These AST Lowering Springs offer a drop of approximately 30mm in the front and 25mm in the rear for the specified BMW 4 Series xDrive models. This helps to lower the vehicle's center of gravity.

Do these springs require any other modifications to install?

These springs are designed as a direct replacement for your OEM springs. However, it is always recommended to consult the manufacturer's installation instructions or a qualified mechanic to ensure proper installation and to check if any additional components are needed for your specific vehicle.

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 over the life of the product.

Specifications

Brand: AST
Part #: ASTLS-21-039
UPC: ASTLS-21-039

AST 07/2013-10/2020 BMW 4 XDRIVE Lowering Springs - 30mm/25mm

Name: AST 07/2013-10/2020 BMW 4 XDRIVE Lowering Springs - 30mm/25mm
Brand: AST
SKU: ast-ast-07-2013-10-2020-bmw-4-xdrive-lowering-springs-30mm-25mm-t14-707560
Price: 313.59 USD
Availability: InStock

$313.59

Only 1 left in stock

AST 07/2013-10/2020 BMW 4 XDRIVE Lowering Springs - 30mm/25mm. Lowers your vehicle's center of gravity while keeping a comfortable ride.

Key Features

Set of AST Lowering Springs for 07/2013-10/2020 BMW 4 Series xDrive models (435i, 440i, 430D, 435D).
Lowers the vehicle's center of gravity for improved handling.
Progressive spring design balances ride comfort with performance.
Cold-coiled on Wafios coiling machines for precise manufacturing.
Direct replacement for OEM springs.
Backed by a lifetime warranty against breaking.

These AST Lowering Springs are designed for 07/2013-10/2020 BMW 4 Series xDrive models, including the 435i, 440i, 430D, and 435D. Please verify fitment for your specific vehicle.

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About this part

Product Details

This product includes a set of AST Lowering Springs, specifically designed to reduce your vehicle's center of gravity. They are a direct replacement for your original equipment manufacturer (OEM) springs and are cold-coiled using Wafios coiling machines, known for their precision. These springs aim to strike a balance, lowering your ride height for improved handling characteristics without sacrificing too much of the comfort you're used to.

The progressive design of these springs means they offer a different spring rate depending on how much they are compressed. This helps to maintain a more comfortable ride during normal driving conditions while still providing a firmer response when you need it, such as during cornering or braking. AST backs these springs with a lifetime warranty against breaking, giving you confidence in their durability.