XYZ Racing Circuit Master Coilovers — Honda CIVIC FC φ50.5 SEDAN/HATCHBACK (Modified Rear lntegrated) 2015-2021

The tenth-generation Civic’s switch to a multi-link rear axle, replacing the torsion beam that sat under lower-spec ninth-generation cars, is why this FC-chassis kit is built with an integrated rear mounting rather than a generic strut-on-beam design. That link layout changes how load transfers through the rear axle under trail braking and mid-corner compression, and a coilover for this chassis has to work with that geometry, not around it.

This is the Circuit Master range from XYZ Racing for the Honda Civic FC φ50.5 sedan/hatchback (2015-2021), built for drivers doing repeated flying laps rather than a single fast run followed by a cool-down. It replaces the factory strut and rear damper as a matched pair, front and rear, so the whole axle is set up to the same brief.

What this coilover does for your 2015-2021 Honda CIVIC FC φ50.5 SEDAN/HATCHBACK (Modified Rr lntegrated)

Fitted to the FC’s multi-link rear and the matching front strut mount for this chassis, the Circuit Master gives you independent compression and rebound adjustment front and rear, which matters on a platform where the standard bushing and damper tune is set for daily ride comfort rather than session-after-session consistency. With thousands of individual settings available rather than a handful of clicks, you can work out the vagueness that stock FC dampers show once track-day tyre pressures and grip levels load the suspension harder than road use ever does. Ride height drops as part of the install, lowering the centre of gravity on a chassis that already carries a nose-heavy weight bias from the engine, and the firmer overall rate keeps body roll under control through the quick direction changes a circuit layout demands of a Civic-sized hatchback or sedan.

About the Circuit Master coilover

XYZ Racing positions Circuit Master as its dedicated track-line damper, built and refined through its own racing teams competing on circuits around the world. The headline figure is 9,720 individual adjustment combinations, controlled through three separate knobs rather than a single dial, so compression and rebound can be set apart from each other instead of moving together. That fine control comes from a small-oil-hole design in the valving; XYZ Racing notes that this can produce a faint noise over sharp bumps, which is a normal side effect of a damper valved this precisely for circuit use rather than road comfort. It is built as the essential partner for cars used in different forms of circuit racing, where consistent, repeatable damper behaviour across a full session matters more than outright ride quality.

Fitment for the Honda CIVIC FC φ50.5 SEDAN/HATCHBACK (Modified Rr lntegrated) (2015-2021)

This kit is specified for the Honda Civic FC chassis (chassis code HN25-8), covering sedan and hatchback body styles built between 2015 and 2021, with a φ50.5mm strut and a rear mount designed for this generation’s modified, integrated multi-link setup. Confirm your car sits within this build range and body style before ordering, since Civic FC/FK variants span several sub-chassis codes across this period.

What buyers also search for

• Honda Civic FC coilover upgrade for circuit and track-day use
• Honda Civic FC HN25-8 adjustable suspension for sedan and hatchback
• Circuit Master damping for repeat-lap consistency on a Honda Civic
• Honda Civic multi-link rear coilover kit 2015-2021

Pick your Circuit Master spec for the Civic FC below and configure the kit to match your build.