KW Suspension H.A.S. Height Adjustable Spring Kit for 2017-2021 Mercedes-Benz C63/C63 S AMG (25325089)

Fits 2017-2021 Mercedes-Benz C63 AMG and C63 AMG S Base models.

The KW H.A.S. (Height Adjustable Spring) kit provides a dynamic alternative to traditional lowering springs, allowing you to fine-tune your vehicle's stance without being locked into a fixed ride height. Unlike standard spring sets, this system utilizes a threaded height adjuster that enables precise leveling even after the kit is installed on the vehicle. This allows for a customized look and improved center of gravity while retaining the full functionality of the factory Mercedes-Benz adaptive or electronic suspension systems.

Constructed from high-tensile chrome-silicon steel, these springs are engineered with rates specifically tuned to the W205-generation wheel loads and damper characteristics. Each kit includes vehicle-specific elastomer bump stops and integrated dust protection to prevent premature wear on factory shocks caused by road debris and grit. All H.A.S. systems undergo rigorous validation at the KW 7-post Driving Dynamic Test Center and the Nurburgring Nordschleife to ensure agile steering response and harmonious ride quality.

• Precision Adjustment: Millimeter-accurate ride height tuning similar to a coilover system.
• OEM Integration: Maintains 100% functionality of factory electronic and adaptive damping systems.
• Premium Construction: Multi-coated chrome-silicon steel springs for maximum durability and corrosion resistance.
• Optimized Protection: Includes application-specific bump stops and dust boots to protect OE dampers.
• Technical Specs: Manufacturer Part Number 25325089; tested for continuous height adjustment.
• Warranty: Limited Lifetime Warranty with unlimited mileage.