ST X Coilover Kit for Select 2015-2021 Honda Civic (Fixed Damping)

Fits select 2015-2021 Honda Civic models, including LX, EX, Sport, and Si. See fitment table for full compatibility.

The ST X Coilover kit provides a significant suspension upgrade for drivers seeking a balance between daily-driver comfort and improved cornering performance. Engineered by KW in Germany, these coilovers feature application-specific damping and spring rates to reduce body roll and improve handling without the complexity of adjustable valving. The system utilizes a galvanized zinc-coated steel housing for maximum corrosion resistance and longevity.

• Precision Height Adjustment: Features a trapezoidal thread and a friction-optimized polyamide composite spring perch with a stainless steel insert for smooth, long-lasting height adjustment without seizing.
• KW Engineering: Hand-built in Fichtenberg, Germany, and tested on a shock dyno to verify proper damping forces before shipping.
• Advanced Sealing & Protection: Equipped with a dust protection system, hardened chrome piston rods, and multi-layered pressure-resistant seals to keep internal valve packs clean and functional.
• Dynamic Load Limiters: Integrated elastomer bump stops protect the seals and piston rods while maintaining ride quality under heavy compression.
• Materials & Finish: Galvanized steel struts and a mono-block guide system ensure structural integrity and low-friction operation.

• Series: ST X
• Damping Type: Fixed
• Material: Galvanized Zinc-Coated Steel / Polyamide Composite
• Warranty: 5-Year Limited (Unlimited Mileage)
• Origin: Made in Germany