If you’re looking to take your ride to the next level, the KW Height Adjustable Spring (H.A.S) kits are worth a serious look. Unlike those conventional lowering springs that lock you into a single height, these bad boys let you fine-tune your vehicle's stance even after installation. That means you can dial in the perfect height whenever the mood strikes you.

Not only does this kit give your car a more aggressive look, but it also transforms how it handles. With the KW H.A.S, the steering feels sharper and more responsive, thanks to the way it works with your factory dampers. And don’t worry about losing any of those driver assistance features or comfort settings you love—everything stays fully functional and works in perfect harmony with this setup.

KW really knows their stuff when it comes to engineering. They use high-quality chrome-silicon steel for the springs, and each one is specifically tuned to match your car’s original suspension characteristics. This means you get a ride that’s not just lower, but also one that feels like it was designed for your vehicle from the ground up. Plus, they throw in vehicle-specific bump stops with a dust protection system to keep your factory suspension safe from all that road grime and debris. It’s all about longevity and performance.

With the KW H.A.S kit, you’ll enjoy a continuous range of ride height adjustments—something you just can’t get with standard lowering springs. The included dust protection elements and spring perches ensure you can lower your ride as much as possible without compromising the factory dampers. It’s a win-win situation. You can achieve that sporty feel without sacrificing the driving dynamics that make your car a joy to drive.

And let’s not forget that these kits have been rigorously tested on the Nurburgring Nordschleife and in KW's 7-post Driving Dynamic Test Center. So you know you’re getting a product that’s been put through the wringer.

• Compatible with vehicles that have or don’t have electronic suspension.
• High-strength springs made from multi-coated chrome-silicon steel, designed specifically for your vehicle.
• Backed by a Limited Lifetime Warranty with Unlimited Mileage.
• Maintains full functionality of factory electronic suspension systems.
• Seamless ride height adjustment, allowing for millimeter precision at each corner.
• Sporty driving behavior without compromising the performance dynamics of your vehicle.

• Color: Yellow, Purple
• Finish: Powder Coated
• Material: Chrome-Silicon Steel
• Body Style: Convertible

• Mercedes-Benz C63 AMG S Base 2017-2021
• Mercedes-Benz C63 AMG Base 2017-2021

So if you’re behind the wheel of a Mercedes-Benz C63 AMG from 2017 to 2021, the KW Suspension Height Adjustable Spring Kit (part number 25325089) might just be what you need to elevate your driving experience. It’s all about getting that perfect blend of style and performance.