Fortune Auto 510 Coilover Kit | 22+ Civic Si, 23+ Integra

Fits:

• 2022+ Honda Civic Si
• 2023+ Acura Integra Base, A-Spec

510 Series Coilovers are custom hand-built to order — most applications carry a 4-7 week lead time. Cancellations are subject to a 30% restocking fee per Fortune Auto's dealer guidelines. Default spring rates are recommended unless you're experienced choosing custom rates. This listing is for a Divorced-Rear (OE style) setup with standard spring rates — contact us for a True-Rear setup or custom spring rate quote.

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The Fortune Auto 510 Series is a step up in sophistication, built around a Concave Flow Digressive (CFD) piston that delivers an unusually wide adjustment range. Where a conventional shock can only handle about a 2kg spring rate difference before needing a revalve, the CFD piston covers a range of roughly 8kg — letting you dial in your suspension trackside without ever pulling the dampers apart.

That range gives the 510 a genuine dual personality: lower spring rates can be firmed up using the damping range like an artificial spring rate, while higher spring rates ride noticeably smoother than you'd expect. The net result is a coilover that's comfortable on the street and unyielding on track, all from a single adjustment knob.

Features

• Amsoil Synthetic Shock Oil
• Concave Flow Digressive Piston Technology™
• Custom built — assembly certificate and dyno graph supplied with shocks
• 5-Year Limited Manufacturer's Warranty
• 24-step simultaneous rebound and compression adjustable dampers
• Monotube damper with high-pressure nitrogen
• T6 6061 aluminum mounts and camber plates
• Rebuildable and revalveable at Fortune Auto's Richmond, VA facility
• Modular — upgradeable to 2-way or 3-way canister

Live stock is not displayed; items may be out of stock upon ordering. Please inquire for a stock check / in-stock alternatives. Cancellation fees may apply (see Terms of Service).