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KW Height Adjustable Springs Porsche 991.2 Turbo / Turbo S (2017-2019)

SKU: KWS25371075
Price
$1,854.00
In Stock and Ready to Ship!

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Installation Services

Don’t worry about the hassle — let our expert team at Forza Motorworks handle the installation for you. Our professional installation ensures everything fits and operates exactly as intended, giving you clean, factory-quality results, proper wiring or mounting, and avoiding the risks of DIY mistakes. You’ll save time, avoid frustration, and get peace of mind knowing the job is done right the first time. Contact us to learn about our installation services and enjoy a seamless upgrade from day one.

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Forza Motor Works accepts returns for exchange, store credit, or refund within fourteen (14) calendar days of the delivery date, subject to the terms and conditions below. After fourteen (14) calendar days, all sales are final unless otherwise approved in writing by Forza Motor Works.

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Forza Motor Works
Email: info@forzamotorworks.com

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FITMENT, INSTALLATION & PRODUCT USE

Customer is responsible for verifying vehicle compatibility, fitment, and intended use prior to installation. While Forza Motor Works makes reasonable efforts to provide accurate product information and fitment guidance, final responsibility for compatibility rests solely with the customer.

Products that have been installed, test-fitted, modified, painted, coated, damaged, or otherwise used are not eligible for return.

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FORZA MOTOR WORKS SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, PUNITIVE, OR CONSEQUENTIAL DAMAGES ARISING FROM THE PURCHASE, INSTALLATION, USE, MISUSE, FAILURE, OR INABILITY TO USE ANY PRODUCT SOLD BY FORZA MOTOR WORKS.

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By placing an order with Forza Motor Works, the customer acknowledges and agrees to all terms and conditions contained herein, including all return, exchange, warranty, and limitation-of-liability provisions.

Product Description

Enhance the stance, handling, and overall driving dynamics of your Porsche 991.2 Turbo or Turbo S with the KW Height Adjustable Spring Kit. Engineered specifically for Porsche's high-performance 911 Turbo platform, this premium suspension upgrade combines the adjustable ride height of a coilover system with the convenience of retaining the original factory shock absorbers, electronic suspension functionality, and front-axle lift system.

Unlike conventional lowering springs that provide a fixed ride-height reduction, the KW H.A.S. (Height Adjustable Spring) system incorporates threaded spring perches that allow precise adjustment of the vehicle's ride height. This gives owners the flexibility to achieve their preferred stance while accommodating different wheel and tire configurations.

For compatible Porsche 991.2 Turbo and Turbo S applications, the system provides approximately 0.4–1.2 inches of front lowering and 0–1.0 inches of rear lowering. Both front and rear ride heights can be adjusted within the manufacturer-approved range, allowing installers to fine-tune the vehicle's appearance and suspension setup.

One of the most significant advantages of the KW H.A.S. system is its ability to retain the factory Porsche shock absorbers. Instead of replacing the complete suspension with aftermarket coilovers, the kit uses application-specific springs and adjustable spring seats engineered to work with the characteristics of Porsche's original dampers.

This design preserves the operation of compatible factory electronic suspension systems, including Porsche Active Suspension Management (PASM). The kit is also designed for compatible vehicles equipped with or without Porsche Dynamic Chassis Control (PDCC), maintaining the functionality of these factory technologies.

Importantly, KW part number 25371075 is specifically engineered for Porsche 991.2 Turbo and Turbo S models equipped with the original front-axle lift system. This allows owners to lower their vehicles while retaining the factory ability to raise the front suspension when approaching steep driveways, parking ramps, and other obstacles.

KW develops vehicle-specific spring rates to complement the original Porsche dampers and improve suspension response. Lowering the vehicle's center of gravity can help reduce body roll, improve steering precision, and create a more planted feel during cornering and spirited driving.

The springs are manufactured from high-strength chrome-silicon steel and feature protective multi-layer coatings designed to provide long-term durability and resistance to corrosion. Application-specific elastomer bump stops and dust protection components are included to support proper suspension operation throughout the available adjustment range.

Each KW H.A.S. application undergoes extensive suspension development and testing, including evaluation using KW's seven-post driving dynamics test center and Nürburgring Nordschleife testing program. This approach helps ensure that the springs, adjustment range, and factory damper compatibility are appropriately matched to the vehicle.

Unlike a full aftermarket coilover system, the KW Height Adjustable Spring Kit does not replace the factory dampers or introduce additional damping adjustment controls. Instead, it focuses on adjustable ride height and refined spring characteristics while preserving the original Porsche suspension architecture.

For Porsche 991.2 Turbo and Turbo S owners seeking a more aggressive stance, improved chassis response, and precise ride-height adjustment without sacrificing factory electronic suspension features, the KW H.A.S. Spring Kit provides an excellent balance of performance, comfort, and adjustability.

Fitment Notes

  • Fits 2017–2019 Porsche 911 Turbo (991.2) with factory front-axle lift

  • Fits 2017–2019 Porsche 911 Turbo S (991.2) with factory front-axle lift

  • Compatible with approved Coupe and Cabriolet configurations

  • Designed for the 3.8L twin-turbocharged flat-six engine platform

  • Compatible with factory all-wheel-drive Porsche 991.2 Turbo applications

  • Factory front-axle lift system required

  • Compatible with vehicles equipped with or without Porsche Dynamic Chassis Control (PDCC)

  • Retains factory Porsche Active Suspension Management (PASM) functionality

  • Retains the original factory shock absorbers

  • Front lowering range: Approximately 0.4–1.2 inches (10–30mm)

  • Rear lowering range: Approximately 0–1.0 inches (0–25mm)

  • Front and rear ride heights are adjustable using threaded spring perches

  • Designed to maintain the operation of the factory front-axle lift system

  • Not intended for vehicles without factory front-axle lift

  • Not intended for Porsche 991.2 Carrera / Carrera S / GTS

  • Not intended for Porsche 991.2 GT3 / GT3 RS

  • Not intended for Porsche 992-generation vehicles

  • Not a complete coilover suspension system

  • Factory shock absorbers must be in good working condition

  • Actual lowering depends on original suspension configuration and vehicle equipment

  • Wheel, tire, fender, and suspension clearance must be verified after installation

  • Professional installation recommended

  • Four-wheel alignment required after installation

Included

  • Two (2) KW front suspension springs

  • Two (2) KW rear suspension springs

  • Front threaded ride-height adjustment components

  • Rear threaded ride-height adjustment components

  • Application-specific elastomer bump stops

  • Dust protection components

  • Required installation and adjustment hardware supplied by KW

Sold Separately:

  • Replacement factory shock absorbers, if required

  • Replacement suspension mounts and service hardware, if required

  • Aftermarket wheels and tires

  • Wheel spacers

  • Professional installation labor

  • Four-wheel alignment

Product Specs

  • Manufacturer: KW Suspensions

  • Product Line: KW H.A.S.

  • Manufacturer Part Number: 25371075

  • UPC: 847691093573

  • Product Type: Height Adjustable Lowering Spring Kit

  • Vehicle Application: Porsche 911 Turbo / Turbo S (991.2)

  • Model Years: 2017–2019

  • Engine: 3.8L Twin-Turbocharged Flat-Six

  • Drivetrain: All-Wheel Drive

  • Body Styles: Coupe / Cabriolet

  • Factory Front-Axle Lift Compatibility: Yes

  • Factory Front-Axle Lift Required: Yes

  • PDCC Compatibility: With or Without PDCC

  • Factory PASM Compatibility: Yes

  • Original Factory Dampers Retained: Yes

  • Spring Quantity: 4

  • Front Ride-Height Adjustment: Threaded

  • Rear Ride-Height Adjustment: Threaded

  • Front Lowering Range: 0.4–1.2 Inches (10–30mm)

  • Rear Lowering Range: 0–1.0 Inches (0–25mm)

  • Spring Material: High-Strength Chrome-Silicon Steel

  • Spring Finish: Multi-Layer Protective Coating

  • Spring Rates: Vehicle-Specific

  • Bump Stops: Application-Specific Elastomer

  • Dust Protection: Included

  • Damper Adjustment: Retained Factory Functionality

  • Installation: Factory Spring Replacement With Adjustable Perches

  • Alignment Required: Yes

  • Manufacturer Warranty: KW Limited Lifetime Warranty, Unlimited Mileage

  • Sold As: Complete Vehicle Spring Kit

Product Features

  • Continuously adjustable front and rear ride height allows precise suspension lowering using threaded spring perches, providing greater flexibility than conventional fixed-height lowering springs.

  • Factory front-axle lift compatibility maintains Porsche's original nose-lift functionality, helping preserve additional clearance for driveways, parking ramps, and uneven road surfaces.

  • Retention of factory PASM and PDCC functionality allows compatible vehicles to maintain their original electronic suspension features without converting to aftermarket dampers.

  • Vehicle-specific spring rates are engineered to work with the original Porsche shock absorbers, supporting improved steering response and chassis stability while maintaining refined ride characteristics.

  • High-strength chrome-silicon steel construction features protective multi-layer coatings and application-specific elastomer bump stops for long-term durability.

  • KW suspension engineering and testing incorporates vehicle-specific development and evaluation using KW's seven-post driving dynamics test center and Nürburgring Nordschleife testing program.

View Product Install Guide