What is the difference between a progressive and a linear spring rate?

A progressive spring rate starts softer and gets stiffer as it compresses, offering a balance of comfort and performance. A linear spring rate remains constant throughout its compression range.

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 requirements and proper alignment after installation.

What does the lifetime warranty against breaking cover?

The lifetime warranty against breaking covers defects in material or workmanship that cause the spring itself to break under normal use. It does not typically cover damage from improper installation or accidents.

Specifications

Brand: AST
Part #: ASTLS-14-318
UPC: ASTLS-14-318

AST 03/2008-12/2013 BMW 1 Lowering Springs - 45mm/30mm

Name: AST 03/2008-12/2013 BMW 1 Lowering Springs - 45mm/30mm
Brand: AST
SKU: ast-ast-03-2008-12-2013-bmw-1-lowering-springs-45mm-30mm-t14-707406
Price: 369.32 USD
Availability: BackOrder

$369.32

On Backorder

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

AST 03/2008-12/2013 BMW 1 Lowering Springs - 45mm/30mm. Lowers your vehicle's center of gravity while maintaining comfortable ride quality.

Key Features

Fits 2008-2013 BMW 1 Series.
Lowers vehicle height by 45mm in the front and 30mm in the rear.
Progressive spring design balances ride comfort with improved handling.
Cold-coiled on Wafios coiling machines for consistent performance.
Direct replacement for OEM springs.
Backed by a lifetime warranty against breaking.

These lowering springs are designed for the 2008-2013 BMW 1 Series. Please verify fitment for your specific vehicle model and year.

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About this part

Product Details

This product includes a set of AST Lowering Springs specifically developed for your 2008-2013 BMW 1 Series. These springs are designed to replace your original equipment manufacturer (OEM) springs, offering a way to lower your vehicle's center of gravity. This can lead to improved handling characteristics and a sportier stance. The progressive design aims to strike a balance, reducing ride height without sacrificing too much of the comfort you're used to from your stock springs.

Crafted using Wafios coiling machines, these springs are cold-coiled for consistent performance. The progressive design means they offer a softer initial engagement for comfort, stiffening up as they compress to help manage body roll during spirited driving. This setup provides a 45mm drop in the front and a 30mm drop in the rear, giving your BMW a noticeably lower profile. AST backs these springs with a lifetime warranty against breaking, so you can install them with confidence.