KW H.A.S. Height Adjustable Spring Kit for 2021+ Porsche 911 Turbo, Part Number KWS25371090

KW (H.A.S) Height Adjustable Spring kits are a great alternative to conventional lowering springs. You are no longer stuck with a fixed lowering height. KW H.A.S. systems allow you to adjust the vehicle ride height with the KW height adjuster even after the kit has been installed. Your vehicle not only gets a more dynamic look, but also the steering behavior and response of the standard dampers becomes more agile. All driver assistance systems and comfort features of a factory adaptive or electronic suspension remain operational and work harmoniously with our vehicle specific spring set up. KW uses high-quality springs made of chrome-silicon steel with spring rates designed specifically for each respective OE suspension damper and wheel load. KW's expertise and engineering ensure the spring rates will pair perfectly with the different damper characteristics of your factory adaptive electronic suspension. Along with the use of high quality materials and the included KW ride height Adjustment - mechanisms, our KW H.A.S. kits always includes the vehicle-specific bump stops with dust protection system to protect your factory suspension against wear & tear caused by road grime and debris. Similar to a coilover suspension, the KW H.A.S kit allow a continuous adjustable ride height within a tested range, something not possible with conventional lowering springs. The dust protection elements and spring perches included in the delivery, when applicable, are always adjusted to the maximum technically possible lowering, typically limited by the factory dampers. With KW height adjustable sp rings, a sporty and harmonious driving behavior can be achieved without the driving dynamics of performance-oriented vehicles suffering. As with all KW suspension products our engineers develop vehicle specific parameters and spring specifications which undergo comprehensive testing on the Nurburgring Nordschleife and in our KW 7-post Driving Dynamic Test Center. KW height adjustable springs kits are a great alternative to traditional lowering springs. They allow you to adjust the ride height even after they have been installed. Designed to work with your OE electronic adaptive or regular shocks. For over 20 years, KW automotive has been the market leader and driving innovation as a manufacturer of individual suspension solutions for the road and in all types of motorsports. No matter where in the world, gearheads, automobile manufacturers and reputable tuners rely on our KW coilovers "Made in Germany". Every KW coilover kit undergoes extensive stress testing before production and is developed and manufactured exclusively in our company headquarters in Fichtenberg, a small in town in Germany, to meet the high standards of our KW quality management. For us as a German manufacturer, it goes without saying that our KW coilover kits will exceed the original equipment manufacturer quality and offer useful and innovative solutions. With an application list comprising more than 4,600 options KW guarantees an outstanding selection backed by our Limited Lifetime Warranty. 2021+ Porsche 911 (992) without & with PASM/ SPORT PASM; without & with original lift system Turbo, Turbo S; coupe & convertible

• Sporty and improved driving behavior is achieved without the driving dynamics of performance-oriented vehicles suffering thanks to our vehicle specific spring rates that are tuned to work with your factory dampers.
• High-strength springs made of multi coated chrome-silicon steel for a long life and is tuned specifically for each vehicle. Application specific high-quality elastomer bump stops also included when applicable.
• Seamless Ride Height Adjustment - Unlike traditional lowering springs you can adjust each corner with millimeter precision.
• Maintains complete functionality of factory electronic suspension systems
• Available for vehicles with or without electronic suspension.
• Limited Lifetime Warranty - Unlimited Mileage

The KW H.A.S. Height Adjustable Spring Kit, Part Number KWS25371090, is designed for 2021 and newer Porsche 911 Turbo and Turbo S models with or without PASM, Sport PASM, and the original factory lift system. This vehicle-specific suspension upgrade provides the adjustable ride height of a coilover system while retaining the factory dampers and electronic suspension functions. It is suitable for coupe and convertible applications.

Unlike conventional lowering springs, the KW H.A.S. system allows continuous ride-height adjustment at each corner after installation. KW engineers develop the spring rates specifically for the original equipment dampers, vehicle load characteristics, and factory suspension settings. The result is a lower, sportier stance with more agile steering response and improved driving behavior without compromising the operating characteristics of performance-oriented Porsche models.

The kit uses high-strength, multi-coated chrome-silicon steel springs engineered for durability and consistent performance. Vehicle-specific elastomer bump stops and dust protection components are included where applicable to help protect the factory suspension from road grime and debris. The included height adjusters provide precise adjustment within the tested application range, while factory electronic suspension and driver-assistance features remain operational. KW validates its suspension designs through extensive testing, including development work at the Nürburgring Nordschleife and KW’s 7-post driving dynamics test center. The KW H.A.S. kit is backed by a limited lifetime warranty with unlimited mileage.

What's Included

• Vehicle-specific KW height-adjustable springs
• KW height adjusters and spring perches
• Application-specific bump stops and dust protection components where applicable
• Installation hardware and vehicle-specific components

Fitment

Fits 2021–2025 Porsche 911 Turbo and Turbo S models, including coupe and convertible configurations, with or without PASM, Sport PASM, and the original factory lift system. Verify exact vehicle configuration before ordering.

Features:

• Vehicle-specific spring rates improve handling and steering response while working with the factory dampers.
• Height-adjustable design allows continuous ride-height adjustment at each corner after installation.
• Multi-coated chrome-silicon steel springs provide high strength, durability, and consistent performance.
• Retains factory electronic suspension, PASM, Sport PASM, lift-system, and comfort-feature functionality where equipped.
• Application-specific bump stops and dust protection help reduce wear caused by road debris.
• Designed for Porsche 911 Turbo and Turbo S coupe and convertible models from 2021 onward.
• Developed and tested using KW engineering standards, including Nürburgring and 7-post driving dynamics testing.
• Backed by KW's limited lifetime warranty with unlimited mileage.

Fitments:
2021 Porsche 911 Turbo
2021 Porsche 911 Turbo S
2022 Porsche 911 Turbo
2022 Porsche 911 Turbo S
2023 Porsche 911 Turbo
2023 Porsche 911 Turbo S
2024 Porsche 911 Turbo
2024 Porsche 911 Turbo S
2025 Porsche 911 Turbo
2025 Porsche 911 Turbo 50 Years
2025 Porsche 911 Turbo S

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: N
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1