Will these springs make my Z4 ride too stiff?

These AST springs use a progressive design. This means they are intended to lower your car's center of gravity while still maintaining a good amount of the original ride comfort.

What does a 'progressive design' mean for a spring?

A progressive spring rate means the spring gets stiffer the more it's compressed. This allows for a comfortable ride during normal driving but provides more support when you're cornering hard or carrying extra weight.

What is covered by the lifetime warranty?

The manufacturer offers a lifetime warranty against breaking. This covers the springs themselves for as long as you own the vehicle.

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Specifications

Brand: AST
Part #: ASTLS-22-145
UPC: ASTLS-22-145

AST 11/2018- BMW Z4 Lowering Springs - 25mm/25mm

Name: AST 11/2018- BMW Z4 Lowering Springs - 25mm/25mm
Brand: AST
SKU: ast-ast-11-2018-bmw-z4-lowering-springs-25mm-25mm-t14-707722
Price: 315.59 USD
Availability: InStock

$315.59

Only 2 left in stock

Fits 2020-2024 BMW Z4. AST Lowering Springs lower your car's center of gravity without sacrificing much comfort.

Key Features

Direct fit — verified for 2020-2024 BMW Z4
Lowers center of gravity — improves handling and gives a sportier look
Progressive spring design — balances ride comfort with improved performance
Cold-coiled on Wafios machines — well-built springs
Lifetime warranty against breaking — covers the springs for as long as you own the car

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About this part

Product Details

Already running a performance setup? This is the next piece. AST Lowering Springs are a direct replacement for your factory springs. They're made to lower your BMW Z4's center of gravity, which helps with handling, without making the ride too harsh.

These springs are cold-coiled on Wafios machines, which are well-known for making quality springs. They have a progressive design that balances lowering the car with improving performance.