AST 5100 1-way Street Coilover Kit | 23+ Civic Type R FL5

Fits:

• 2023+ Honda Civic Type R (Hatch FL5)

Includes springs, designed to run OEM top mounts. 12-position rebound adjustment. Rebuildable at certified AST service centers.

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The 5100 Street is AST's answer to genuine everyday road balance — a true coilover design (not a simple strut/spring combo) that gives you real control over both damping and ride height rather than a fixed, one-size-fits-all setup. Setup and spring rates come from AST's own extensive development and testing, so the baseline is already dialed in.

AST builds these as a monotube design, using a large piston for genuinely responsive rebound adjustability without the aeration or foaming issues twin-tube dampers can suffer under hard use.

Features

• True coilover design — independent damping and ride height adjustment
• 12-position rebound adjustment
• Monotube damper design, large piston, minimal aeration/foaming
• High-pressure damping adds resistance under demanding conditions
• Runs OEM top mounts
• Rebuildable at certified AST service centers

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