ST Suspensions X Coilover Kit – 2016–2021 Honda Civic EX (FC/FK) | Fixed Damping | Adjustable Ride Height

Lower your 2016–2021 Honda Civic EX and sharpen its handling with the ST Suspensions X Coilover Kit — developed for the everyday driver who needs to hug the curves yet retain road comfort. Simple, uncomplicated road performance for those who just want to get in and drive. The ST X Coilover delivers precise ride height adjustability and a more aggressive stance, backed by KW-engineered dampers — ST Suspensions relies on world-class damper engineering delivered by KW for all ST dampers. Application-specific for the 2016–2021 Honda Civic EX (FC/FK chassis) and perfectly adapted for everyday life.

Fixed Damping: The ST X Coilover features fixed (non-adjustable) damping — damping is factory-set and optimized by ST Suspensions engineers for the Civic EX platform. There is no rebound or compression damping adjustment. This is ST's entry-level coilover specification, prioritizing simplicity and value. For adjustable damping, see ST Suspensions' higher-tier coilover offerings.

Key Features

• KW-Engineered Dampers – World-Class Engineering: ST Suspensions relies on world-class damper engineering delivered by KW for all ST dampers — the same engineering expertise behind KW's premium coilover lineup, applied to ST's everyday performance specification. A significant quality advantage over generic coilover brands at this price point
• Adjustable Ride Height – Polyamide Composite Spring Perch: Precise ride height adjustment via an adjustable spring perch manufactured from durable, friction-optimized polyamide composite material with a stainless steel insert — corrosion is prevented between the strut and perch, ensuring long-lasting height adjustability throughout the coilover's service life
• Fixed Damping – ST-Optimized for Civic EX: Factory-set damping optimized by ST Suspensions engineers for the 2016–2021 Civic EX platform — no adjustment required. Simple, set-and-forget damping for everyday performance driving
• Galvanized Zinc-Coated Steel Struts – Corrosion Protection: Galvanized zinc-coated steel strut bodies optimize corrosion protection for long-lasting use in all weather conditions
• Dust Protection System: Integrated dust protection system prevents unwanted dirt and particulate from contacting the hardened chrome piston rod or entering the valve packs — extending damper service life
• Multi-Layered Sealing & Mono Block Guide System: Multi-layered pressure-resistant sealing package, mono block guide system, and low-friction piston band working inside the pressure-resistant internal damper housing — ST's no-compromise internal damper construction
• Civic EX Specific – FC/FK Chassis: Application-specific for the 2016–2021 Honda Civic EX (FC sedan / FK hatchback chassis) — verify your specific Civic trim level before ordering. The Civic Si and Type R use different suspension geometry and require different coilover kits

Specifications

• Type: Coilover Kit
• Series: ST X
• Damping: Fixed (Non-Adjustable)
• Ride Height: Adjustable
• Spring Perch: Polyamide Composite with Stainless Insert
• Strut: Galvanized Zinc-Coated Steel
• Damper Engineering: KW
• Fitment: 2016–2021 Honda Civic EX (FC/FK)
• Part Number: 13250037

Note: Fixed damping — no rebound or compression adjustment. Civic EX fitment only — not for Civic Si or Type R. Verify your specific Civic trim level and chassis (FC sedan vs FK hatchback) before ordering. A full alignment is required after installation. Professional installation by an experienced suspension shop is strongly recommended.