KW Suspension HLS 4 Upgrade Kit for KW Suspension Coilovers for VW/Audi (19280421)

KW Suspension HLS 4 Upgrade Kit for KW Suspension Coilovers for VW/Audi (19280421)Due to the low center of gravity many super cars have less ground clearance. In order to be able to drive over speed bumps or steep ramps in parking garages without any problems, we have developed the KW Hydraulic Lift System. At the touch of a button the HLS system lifts vehicles by up to 45 millimeters allowing obstacles to be negotiated without a problem. Compatible with our KW coilover suspension or with the original suspension depending on

Due to the low center of gravity many super cars have less ground clearance. In order to be able to drive over speed bumps or steep ramps in parking garages without any problems, we have developed the KW Hydraulic Lift System. At the touch of a button the HLS system lifts vehicles by up to 45 millimeters allowing obstacles to be negotiated without a problem. Compatible with our KW coilover suspension or with the original suspension depending on vehicle type and application.

With the KW HLS lift system you can lift your sports car or lowered vehicle to safely negotiate obstacles such as speed bumps, railroad crossings, road construction, garage approaches and underground car parks. Depending on the version of the HLS lift system your vehicle can be hydraulically lifted either at the front axle or at both axles by up to 45 mm. This prevents accidental damage to your aero components, underbody protection or even oil sump. The lift system is available either as a vehicle-specific solution with or without a KW coilover kit, depending on the type of car and the model. If you cannot find your vehicle in our KW HLS product range, our engineers have also developed a universal lift system.

KW HLS systems are available in two different variations. The HLS 2 lift system is only installed on the front axle. The HLS 4 system allows you to lift the entire vehicle. A hydraulic cylinder is installed between spring perch and springs on each of the KW struts. The great advantage of the hydraulic system is that driving dynamics are not affected. The delivery content for all HLS systems include a control unit, which is connected to the vehicles on-board electronics. The vehicle will be automatically lowered at a certain speed to the original level of the KW coilover kit or your factory suspension.

For a wide range of super cars and performance vehicles KW HLS is available as an application-specific solution. Included in the delivery is all the necessary parts for installation including the hydraulic lines & hydraulic pump adapted to your vehicle. All of the components will fit perfectly in your car. If you want to combine the HLS with your factory suspension or upgrade to our KW coilovers, the choice is yours. Alpina, BMW M, Manthey, Mercedes-Benz AMG, Novitec Rosso and many well-known international automotive companies place their trust in KW HLS systems and coilover kits.

With KW HLS system that includes coilovers you can achieve maximum lowering within an approved lowering range that ensures a proper functioning suspension with adequate travel after your car is lowered. Even after years of use you can easily adjust the ride height thanks to the dirt resistant trapezoid thread and composite adjustment collar. As with all KW coilovers our engineers develop vehicle specific damper and spring specifications which undergo comprehensive testing on the Nürburgring Nordschleife and in our KW 7-post Driving Dynamic Test Center. With a KW HLS coilover kit the driving experience is more dynamic and direct. You are not buying a mass produced, generic coilover kit, a KW coilover has been developed specifically for your particular vehicle. As a manufacturer, KW uses only its own resources, high quality components and the damper technology that has all developed in-house. With the KW coilovers, rolling motion of the body will be reduced during compression giving you the benefit of more direct handling and confidence while driving.

KW HLS Kits Feature:

• Customized Suspension Lowering. KW coilover suspensions, KW height adjustable springs, and KW DLC Air Suspensions allow the suspension to be lowered within the vehicle's technical limitations. For example, our Street Comfort products allow for a customized ride height setting with mild suspension lowering from 10 - 50 mm, while the Street Performance products allow the maximum technically possible suspension lowering range from 45 - 85 mm, depending on the vehicle. This means that the suspension can be lowered to suit the personal needs of the user and, depending on the product category, a setting ranging from Comfort to Performance can be chosen.
• Composite Spring Seat. The KW coilover spring seat, also known as a spring perch, is constructed with a wear-resistant, friction-optimized polyamide composite material encompassing a stainless steel insert. In contrast to the anodized aluminum adjustable spring seats, the polyamide composite material prevents any possible oxidation while the stainless steel insert maximizes strength.
• Trapezoidal Threads. In combination with the Inox-Line stainless steel coilover struts, this guarantees the long-term functionality of ride height adjustability. In comparison to common coilovers, KW uses a friction-optimized trapezoidal thread which is less sensitive to dirt and requires less force to adjust. Its large cross-section also provides a higher load-bearing capacity.
• INOX-Line. KW's coilover suspension struts are manufactured from high-quality stainless steel that is rust-proof. In contrast to other solutions, Inox-Line coatings will not wear off while adjusting the suspension making KW coilover struts 100 percent corrosion resistant with an unlimited lifespan. Lowering the suspension using the trapezoidal thread in combination with the polyamide composite spring seat guarantees long term usability. Even after years the ride height adjustability is not affected.
• TVR-A Technology. The two-stage, patented TVR-A (Twin Valve Rebound - Adjustable) technology enables a small volume of oil to flow through an adjustable, conically shaped, low-speed bypass during low damper speeds, while in the case of higher damper speeds, the main rebound stage valve opens allowing a larger volumn of oil to flow. This provides a big improvement in terms of ride comfort without influencing the safety-relevant high-speed range.
• TCV-A Technology. The patented compression stage valve with TVC-A technology features two separate spring pre-tensioned valves for low and high volume flows. The compression stage which is tuned to the particular vehicle type on our 7-post rig is supplied with a mid-range factory setting. With 12 precise clicks the adjustable compression stage valve can increase or decrease the cross section in the low-speed valve to achieve more or less compression stage damping. At the same time, in the case of sud-den high piston speeds, the spring pre-tensioned needle valve and the spring pre-tensioned main valve open to their maximum cross section, utilizing the blow-off feature to prevent undesired progressive power surges in the high-speed range. This allows for improved bracing of the vehicle body while simultaneously offering more comfort than with con-ventional valve technology in the case of high wheel acccelleration. The compression stage damper setting is always supplied in combination with a separate rebound stage setting, as only one independent 2-way damper setting allows for true performance optimization.
• Hydraullic Elevation. With KW’s hydraulic lift system (HLS) the body can be raised for more ground clearance with the touch of a button, even while driving. With KW’s HLS, obstacles like speed bumps or steep parking garage ramps can be negotiated easily. The system can be used as a vehicle-specific retrofit solution for OEM dampers or as a complete suspension solution including the hydraulic equipment. The KW hydraulic lift system is available for the front axle or for both axles, depending on the application.
• Technical Component Report. The technical component report is always included in the package and outlines the guidelines for lowering the suspension of the respective vehicle. The technical component report ensures the vehicle remains usable when set within the guidelines provided in the installation instructions, allowing for an inspection and subsequent entry into the vehicle documents to be carried out without any problems. The technical component report also includes precise vehicle classification, requirements, and tips for safe fitting.These reports are required for road legal approval in many countries, check local laws.

KW is the Benchmark for coilovers. KW Clubsport coilover rewards the sporty driver with its harmonious pre-configured setup. For each vehicle our engineers develop a specific damper setup and spring rate to increase the driving pleasure with an optimal balance of sportiness and practicality. As with all KW coilovers, the engineers at KW develop the vehicle-specific KW damper tuning and spring rates with comprehensive testing on the Nurburgring Nordschleife and in the KW 7-post chassis dynamics test center. You are not buying a mass produced, generic coilover kit, a KW coilover has been developed specifically for your particular vehicle. As a manufacturer, KW uses only its own resources, high quality components and the damper technology that has all developed in-house. With the KW ClubSport coilovers, body roll will be reduced during compression giving you the benefit of a more genuine and direct sporty handling while driving.

• Specifically Tuned Package Per Application
• Rebound Valve Assembly
• KW Coilover Struts are Made of Stainless Steel
• Vehicle Specific Chasis Development
• In House Production in Fichtenberg, Germany
• Each KW Coilover Development Undergoes Endurance Testing