The Skunk2 Pro-ST Coilovers for the 2017–2021 Honda Civic Si offer a premium fully adjustable suspension setup for both street and track use. Designed with performance and versatility in mind, the Pro-ST system gives drivers 12 levels of damping adjustability and independent control over ride height and spring preload.
Each unit features a one-piece forged mono-tube body with oversized piston valves for consistent fluid control and stability. The included SAE 9254V race springs are CNC-wound, phosphate-coated, and powder coated for durability and performance. Shortened shock shafts allow for maximum lowering without sacrificing ride quality.
Key Features:
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12-way adjustable damping for fine-tuning street/track handling
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Independent ride height and spring preload adjustments
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One-piece forged mono-tube design with oversized piston valves
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Shortened shaft stroke for aggressive lowering
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CNC-wound SAE 9254V race springs
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Spring Rate: Front 6 kg/mm | Rear 6 kg/mm
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Billet aluminum upper mounts with spherical bushings
Fitment:
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2017–2021 Honda Civic Si
Recommended Add-ons:
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Rear Camber Kit (Hard Anodized): 516‑05‑1600
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Rear Camber Kit (Gold Anodized): 516‑05‑1605