How do I adjust the ride height with these coilovers?

Ride height is adjusted using the composite spring perch and the unique trapezoidal thread pitch on the strut body. This design makes adjusting the height straightforward to achieve your desired look and tire fitment.

What is the benefit of the composite spring perch?

The composite spring perch, made from wear-resistant polyamide with a stainless steel insert, prevents oxidation and corrosion between the strut and perch. This ensures that height adjustability remains easy and effective over time.

Are these coilovers suitable for daily driving?

Yes, the ST X Coilover system is designed to balance sporty handling with road comfort for everyday use. The dampers and spring rates are specifically tuned by engineers in Germany to match each vehicle application.

ST Coilover Kit 2014 BMW 428i Base RWD Convertible

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Specifications

Brand: ST Suspensions
Part #: 1322000J
UPC: 847691031001

ST Coilover Kit 2014 BMW 428i Base RWD Convertible

Name: ST Coilover Kit 2014 BMW 428i Base RWD Convertible
Brand: ST Suspensions
Price: 1184.83 USD
Availability: InStock

$1184.83

On Backorder

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

ST Coilover Kit 1322000J for BMW 3 Series and 4 Series. Offers height adjustability for a custom look and improved handling.

Key Features

Fits select BMW 3 Series and 4 Series models from 2014-2020.
Adjustable spring perch made from durable, friction-optimized polyamide composite with a stainless steel insert prevents corrosion.
Galvanized steel strut housing offers improved resistance to corrosion for long-lasting use.
Integrated dust protection system prevents dirt and debris from reaching the piston rod and seals.
Dampers and spring rates are tuned by engineers in Germany for specific vehicle applications.
Built by hand by experts at KW in Germany, with individual damper testing.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

Starting with the adjustable spring perch, which is made from a durable, friction-optimized polyamide composite with a stainless steel insert, you get corrosion prevention between the strut and perch. This ensures that adjusting your ride height remains easy for the life of the kit. The galvanized zinc-coated steel struts offer solid corrosion protection, and a dust protection system is integrated to keep dirt and debris away from the hardened chrome piston rod and valve packs. These coilovers are built by hand by experts at KW in Germany, with each damper tested on a shock dyno to ensure it meets specifications before being boxed.

The ST X Coilover system is designed to give you a sporty feel while still providing a comfortable ride for everyday driving. The dampers and spring rates are tuned by ST's vehicle dynamics engineers in Germany to perfectly match specific vehicle applications, offering a balanced mix of performance and comfort. With a wide range of height adjustability, you can dial in your preferred look and fine-tune your tire and wheel fitment. This kit fits a range of BMW 3 Series and 4 Series models, including the 2014-2018 BMW 3 Series GT, 2014-2016 BMW 428i, and 2017-2020 BMW 430i Gran Coupe, among others.

This kit includes everything needed for installation, featuring elastomer bump stops with integrated dust protection to keep contaminants out and maintain ride quality. The seamless ride height adjustment, thanks to the composite spring perch and unique trapezoidal thread pitch, makes it straightforward to set your desired stance. ST Suspensions backs these coilovers with a 5-year limited warranty with unlimited mileage.