XYZ Racing Tarmac Rally Coilovers — Honda CIVIC SI φ54 2017-2026

Sealed-stage tarmac punishes a front-driven car harder than any circuit lap. The Civic SI’s turbocharged four pushes drive through the front struts on corner exit, and a rally stage rarely offers the smooth, swept surface of a track – patched repairs, mid-corner camber changes and the odd crest taken flat all load the damper in ways a road-tuned kit isn’t built to handle. The XYZ Racing Tarmac Rally coilover for the Honda Civic SI is calibrated specifically around that abuse, not around a clean apex kerb.

Where a Super Sport or Top Sport tune is built to control a smooth, consistent surface lap after lap, this Tarmac Rally spec is built to keep the tyre loaded through a surface that’s constantly changing underneath it. That’s the difference that matters if you’re pointing a 2017-2026 Civic SI at a stage rather than a circuit.

What this coilover does for your 2017-2026 Honda Civic SI Φ54

On broken tarmac, the biggest threat to a fast Civic SI isn’t outright grip – it’s the front end skipping off line the instant a compression or a patched seam upsets the body. This coilover’s Tarmac Rally valving is set up to absorb those hits – big bumps, crests, mid-corner surface changes – without transmitting the jolt straight into the chassis, which keeps the front tyre pressed into the road instead of hopping across it. The result is more usable traction out of slow stage corners and a car that stays composed when the surface stops being predictable, rather than one that only behaves on freshly laid tarmac. Because the settings come from XYZ Racing’s own tarmac rally programme rather than a generic fast-road base, the compression and rebound balance is already biased toward stage work, not commuting comfort.

About the Tarmac Rally coilover

The Tarmac Rally coilover exists for one job: sealed-stage rallying, where the surface is tarmac but never in circuit condition. XYZ Racing built the damper to soak up the impact of an uneven road surface – the kind of jolt you get crossing a big bump or a patched repair – and to stop that hit turning into body movement you then have to correct mid-corner. Controlling that shock absorption is what keeps the tyre working the road surface instead of skipping across it, which is where the traction gain actually comes from. The stability that follows is what lets a driver commit to a line on a stage road rather than backing off for an unknown surface change. Every setting in this kit is drawn from XYZ Racing’s own tarmac rally experience, not adapted from a track-day base.

Fitment for the Honda Civic SI Φ54 (2017-2026)

Built for the Honda Civic SI Φ54, chassis code HN25-7, covering the 2017 to 2026 model years. The kit is matched to this chassis’s strut and mounting points across that full production span, so confirm your build year falls within 2017-2026 before ordering.

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Spec the Tarmac Rally coilover to your Civic SI’s exact build and configure yours below.