What is the KW Spring Kit for 981 made from?

KW builds the kit around a high-quality stainless steel damper housing with a composite spring seat and a trapezoidal thread body for continuous height adjustment. It is manufactured at KW’s headquarters in Fichtenberg, Germany, and every application is validated on the company’s own 7-post shaker rig before it enters production.

Which Porsche models does this kit fit?

This part number covers the Porsche Boxster and Cayman built between 2013 and 2025, across 17 listed engine and body variants shown under Applications. Confirm the exact model, drivetrain and suspension options against that list before ordering, because KW builds separate part numbers for closely related versions of the same car.

How far does the Spring Kit for 981 lower the car?

Ride height is continuously adjustable on the trapezoidal thread rather than fixed at a single drop. That allows the car to be corner balanced to a target and the setting revised later without changing springs, which is the practical difference between a coilover and a lowering spring.

Is this kit suitable for daily driving?

Yes. KW valves this kit for road use first and validates it on the 7-post rig against real road inputs, so body control improves without the harshness a track damper brings. Ride height can also be set conservatively to preserve ground clearance for everyday driving.

Does the Spring Kit for 981 need any modification to fit?

No. The kit is built as a direct replacement for the factory suspension on the listed applications and installs with normal workshop tools. Read the Notes for this part number first, since some applications require the factory electronic damping to be deactivated or wheel spacers to be run.

Where is this kit made?

KW designs and manufactures the kit at its headquarters in Fichtenberg, Germany, where the company has built suspension since 1995. Every damper is engineered in house and validated on KW’s own 7-post shaker rig and kinematics benches rather than sourced from a contract supplier.

Description

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Description

KW H.A.S. Height Adjustable Spring Kit for 981 / 982 Porsche Boxster and Cayman

KW’s Spring Kit for 981 / 982 Porsche Boxster and Cayman lowers the car properly while leaving the factory dampers and their electronics alone. It is a height adjustable spring kit that lowers the car on its original dampers, developed and manufactured by KW in Fichtenberg, Germany and validated on the company’s own 7-post shaker rig before production. Pitch and roll under braking, cornering and load change are reduced, body control improves, and the 981 / 982 Porsche Boxster and Cayman responds the way its specification always suggested it could.

Design and Performance

The Spring Kit for 981 is a height adjustable spring kit that lowers the car on its original dampers. Damping is valved by KW for this specific application rather than adapted from a generic part, and ride height is set on the strut body so corner weights can be dialled in properly. KW validates every application on its own 7-post shaker rig and supplies the kit ready to install on the listed vehicles.

Features

The Spring Kit for 981 offers height adjustable springs that retain the factory dampers
Continuous ride height adjustment via threaded spring perches
Progressive spring rates matched to the factory damping
Validated on KW’s 7-post shaker rig
No change to the factory damper wiring or electronics
Developed and manufactured in Fichtenberg, Germany

Specifications

Damper: retains the factory dampers
Height adjustment: continuous, on the trapezoidal thread
Damping adjustment: valved by KW for this application
Shipping weight: 22.1 lb
Carton dimensions: 24 x 16.9 x 6.9 in

Applications

Porsche 718 Boxster 25 Years: 981 / 982 | 2021-2022 | 4.0L flat-six
Porsche 718 Boxster GTS: 981 / 982 | 2018-2019 | 2.5L flat-four
Porsche 718 Boxster S: 981 / 982 | 2017-2025 | 2.5L flat-four
Porsche 718 Boxster Style Edition: 981 / 982 | 2024-2025 | 2.0L flat-four
Porsche 718 Boxster T: 981 / 982 | 2020-2023 | 2.0L flat-four
Porsche 718 Boxster: 981 / 982 | 2017-2025 | 2.0L flat-four
Porsche 718 Cayman GTS: 981 / 982 | 2018-2019 | 2.5L flat-four
Porsche 718 Cayman S: 981 / 982 | 2017-2025 | 2.5L flat-four
Porsche 718 Cayman Style Edition: 981 / 982 | 2024-2025 | 2.0L flat-four
Porsche 718 Cayman T: 981 / 982 | 2020-2023 | 2.0L flat-four
Porsche 718 Cayman: 981 / 982 | 2017-2025 | 2.0L flat-four
Porsche 718 Spyder: 981 / 982 | 2020-2023 | 4.0L flat-six
Porsche Boxster Black Edition: 981 / 982 | 2016 | 2.7L flat-six
Porsche Boxster GTS: 981 / 982 | 2015-2016 | 3.4L flat-six
Porsche Boxster S: 981 / 982 | 2013-2016 | 3.4L flat-six
Porsche Boxster: 981 / 982 | 2013-2016 | 2.7L flat-six
Porsche Cayman: 981 / 982 | 2014-2016 | 2.7L flat-six

Notes

Height adjustable on both the front and rear axles
KW builds other suspension kits for the 981 / 982 Porsche Boxster and Cayman: KW V3 Coilover Kit for 981 / 982 Porsche Boxster and Cayman (35271048)
KW also sells this kit bundled with its Hydraulic Lift System, which is the better buy if extra ground clearance is also needed: KW V3 Coilover Kit with HLS 2 for 981 / 982 Porsche Boxster and Cayman (35271248)
A hydraulic lift system is available for this chassis: KW HLS 2 Hydraulic Lift System for 981 / 982 Porsche Boxster and Cayman with KW Coilovers (19271248) and KW HLS 2 Hydraulic Lift System for 981 / 982 Porsche Boxster and Cayman with OE Suspension (19271648)
Removing the factory electronic dampers requires a cancellation module. The KW ESC Module for 991 Porsche Boxster, Cayman and 911 (68510316) prevents fault messages once they are out.

Frequently Asked Questions

What is the KW Spring Kit for 981 made from? KW builds the kit around a high-quality stainless steel damper housing with a composite spring seat and a trapezoidal thread body for continuous height adjustment. It is manufactured at KW’s headquarters in Fichtenberg, Germany, and every application is validated on the company’s own 7-post shaker rig before it enters production.
Which Porsche models does this kit fit? This part number covers the Porsche Boxster and Cayman built between 2013 and 2025, across 17 listed engine and body variants shown under Applications. Confirm the exact model, drivetrain and suspension options against that list before ordering, because KW builds separate part numbers for closely related versions of the same car.
How far does the Spring Kit for 981 lower the car? Ride height is continuously adjustable on the trapezoidal thread rather than fixed at a single drop. That allows the car to be corner balanced to a target and the setting revised later without changing springs, which is the practical difference between a coilover and a lowering spring.
Is this kit suitable for daily driving? Yes. KW valves this kit for road use first and validates it on the 7-post rig against real road inputs, so body control improves without the harshness a track damper brings. Ride height can also be set conservatively to preserve ground clearance for everyday driving.
Does the Spring Kit for 981 need any modification to fit? No. The kit is built as a direct replacement for the factory suspension on the listed applications and installs with normal workshop tools. Read the Notes for this part number first, since some applications require the factory electronic damping to be deactivated or wheel spacers to be run.
Where is this kit made? KW designs and manufactures the kit at its headquarters in Fichtenberg, Germany, where the company has built suspension since 1995. Every damper is engineered in house and validated on KW’s own 7-post shaker rig and kinematics benches rather than sourced from a contract supplier.

About KW

KW automotive has developed and built suspension in Fichtenberg, Germany since 1995, and supplies coilover systems to vehicle manufacturers, professional tuners and race teams worldwide. Every KW damper is engineered in house, validated on the company’s own 7-post shaker rig and kinematics test benches, and manufactured at the Fichtenberg headquarters rather than sourced from a contract supplier. The application list runs to more than 4,600 fitments, from road cars to GT racing machinery.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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KW H.A.S. Height Adjustable Spring Kit for 981 / 982 Porsche Boxster and Cayman [25371048]

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KW H.A.S. Height Adjustable Spring Kit for 981 / 982 Porsche Boxster and Cayman

Design and Performance

Features

Specifications

Applications

Notes

Frequently Asked Questions

About KW

Reviews