KW H.A.S. for Maserati Quattroporte (M139)

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 springs, 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.

Additional Information

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.

Application Summary

2014+ Maserati Quattroporte VI (M156) AWD

Part Type

Coilover Adjustable Spring Lowering Kit

• Available for vehicles with or without electronic suspension.
• 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.
• Limited Lifetime Warranty - Unlimited Mileage
• Maintains complete functionality of factory electronic suspension systems
• Seamless Ride Height Adjustment - Unlike traditional lowering springs you can adjust each corner with millimeter precision.
• 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.

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Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

KW H.A.S., Maserati Quattroporte (M139)

Equip your car with height-adjustable spring systems—the KW Suspensions HAS coilover kits deliver improved looks and more driving dynamics with OEM quality. A great alternative to conventional springs, they let you move beyond fixed lowering of your vehicle, enabling you to adjust the height even after installation. You no longer have to decide on the lowering at the start of your project. These coilovers feature threaded spring perches that allow you to change the lowering within the adjustment range at any time, like changing your wheel/tire combination. KW uses high-quality springs made of chrome-silicon steel that are vehicle-specific and adjusted to the respective standard suspension dampers and wheel loads. Lower your car and have the advantage of an individual adjustment range with KW HAS coilover kits. Order the kit recommended for your vehicle.

KW HAS coilover kits feature:
• Individual height adjustment of the standard suspension kit
• Adaptive damper control remains active
• Vehicle-specific spring rates
• Better steering behavior
• Improved looks