Tein Flex Z Coilover Kit | 22+ Civic Si, 23+ Integra A-Spec

Fits:

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

Includes error code cancellers — no chassis service warning lights on the dash. We've installed this exact kit and part number on our own Project Integra build alongside a local Acura dealership to confirm fitment: no error codes.

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Tein's Flex Z uses a twin-tube damper design specifically to keep ride quality comfortable on the street despite larger wheels/tires and a lowered ride height — the oil and gas chambers aren't arranged serially, which secures enough stroke while keeping friction low for a supple ride at low speed and stable control at high speed.

16-level damping force adjustment (compression and rebound together) via a needle valve lets you dial the ride from comfortable daily-driver to sharper sport handling with a simple knob turn, and the kit is compatible with Tein's EDFC series for in-cabin damping adjustment on the fly. Adjustable pillow-ball top mounts add negative camber for better handling and wheel/tire clearance, and no-sag SAE9254 springs are cold-formed and powder coated for long-term stability.

Features

• Twin-tube damper design for street-comfortable ride quality
• 16-level damping force adjustment (compression and rebound together)
• Compatible with EDFC and EDFC Active Pro for in-cabin damping control
• Adjustable pillow-ball top mounts for added negative camber
• No-sag SAE9254 cold-formed springs, powder coated
• TEIN-Green 2-layer/1-bake powder coating and ZT Coating for corrosion resistance
• Includes error code cancellers and application-specific ride height adjusting wrench