What is the main benefit of installing these lowering springs?

These springs lower your vehicle's center of gravity, which can improve handling and give your BMW 4 Series a sportier appearance. They are designed to do this while maintaining a comfortable ride similar to the original equipment.

What does the lifetime warranty cover?

The lifetime warranty covers the springs against breaking. This provides peace of mind for the longevity of the product.

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 professional mechanic for specific details regarding installation and any potential complementary parts or adjustments.

Specifications

Brand: AST
Part #: ASTLS-21-033
UPC: ASTLS-21-033

AST 10/2013-10/2020 BMW 4 Lowering Springs - 35mm/30mm

Name: AST 10/2013-10/2020 BMW 4 Lowering Springs - 35mm/30mm
Brand: AST
SKU: ast-ast-10-2013-10-2020-bmw-4-lowering-springs-35mm-30mm-t14-707551
Price: 324.06 USD
Availability: BackOrder

$324.06

On Backorder

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

AST 10/2013-10/2020 BMW 4 Lowering Springs - 35mm/30mm. Lowers your BMW's center of gravity while keeping a comfortable ride.

Key Features

Set of AST Lowering Springs for 2013-2020 BMW 4 Series (435i, 440i, 430D F33).
Lowers the vehicle's center of gravity by 35mm in the front and 30mm in the rear.
Designed as a direct replacement for OEM springs.
Crafted from premium materials using Wafios coiling machines.
Features a progressive spring design for a balance of ride comfort and performance.
Backed by a lifetime warranty against breaking.

These lowering springs are specifically designed for BMW 4 Series models from October 2013 to October 2020, including the 435i, 440i, and 430D F33 variants.

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About this part

Product Details

You're getting a set of AST Lowering Springs designed specifically for your 2013-2020 BMW 4 Series (models like the 435i, 440i, and 430D F33). These springs are made to replace your factory ones, helping to lower your vehicle's center of gravity for improved handling characteristics. The goal here is to give you a sportier stance and feel without sacrificing too much of the comfortable ride you expect from your BMW.

AST builds these springs using premium materials and cold-coiling them on Wafios machines, which are known for their precision. This progressive spring design aims to strike a good balance between lowering the car and enhancing its performance. You can expect a noticeable change in how the car sits and handles, with a lower profile that can make a difference during spirited driving.

These springs come with a lifetime warranty against breaking, so you can install them with confidence. They're a solid option if you're looking to give your BMW 4 Series a more aggressive look and a more connected feel to the road.