XYZ Racing Street Advanced Coilovers — Honda CIVIC FC φ52 SEDAN/HATCHBACK (Modified Rear lntegrated) 2015-2021

Not all FC-chassis Civics share the same rear end. This fitment (HN25-9) covers cars built with the modified Rr Integrated rear – the reworked rear suspension mounting that replaced the standard set-up on certain 2015-2021 Civic FC sedans and hatchbacks – and the Street Advanced coilover is built to match those specific pickup points rather than a generic FC rear.

For a Civic that’s already running this revised rear geometry, fitting a coilover engineered for the standard rear mounts is a compromise at best. XYZ’s Street Advanced kit is set up around this exact rear arrangement, so ride height, spring perch position and damper stroke are correct for the car as it sits, not as the base FC left the factory.

What this coilover does for your 2015-2021 Honda Civic

Fitted to a modified-rear FC Civic, the Street Advanced kit tightens up body control through direction changes without turning the car harsh over broken B-road surfaces – the usual trade-off on a hatch or sedan that still has to do school runs and motorway miles. The wide damping range lets you soften the front for daily driving and firm up the rear to match the reworked geometry, keeping the axle settled under braking rather than skipping over ridges. Ride height adjusts independently of spring preload, so you can lower the Civic’s stance without stacking preload on top of the factory spring rate and losing compliance in the process. On a track day, the same adjustment range gives you a starting point to firm the whole car up for a session, then wind it back out for the drive home.

About the Street Advanced coilover

Street Advanced is XYZ Racing’s volume model, refined by its engineering team over several product cycles and run through the same testing programme XYZ uses to develop kit for its racing customers worldwide. The core spec is a 720-way damping adjuster, giving a genuinely fine-grained window between comfort and control rather than a handful of coarse steps. It’s built as a dual-purpose kit: firm enough to hold a Civic FC flat through a track day’s worth of laps, compliant enough that daily use isn’t a chore. XYZ positions it as the default choice for owners who want one coilover kit covering both jobs, rather than picking between a comfort-biased setup and a circuit-only one.

Fitment for the Honda Civic (2015-2021)

This kit is built for the Honda Civic FC φ52 Sedan/Hatchback, chassis code HN25-9, across the 2015-2021 model years, specifically the modified Rr Integrated rear-suspension variant. Confirm your Civic has had this rear conversion before ordering, since the standard-rear FC uses different mounting geometry.

What buyers also search for

• Honda Civic FC coilover kit for the modified rear integrated conversion
• Honda Civic HN25-9 suspension upgrade for road and track use
• Civic FC Street Advanced damping that holds its settings between track days
• Honda Civic 2015-2021 ride height adjustment without losing daily comfort
• Honda Civic FC φ52 sedan and hatchback coilover options for the HN25-9 chassis

Pick your damping and ride height settings for the Civic FC below, and configure yours to match how you actually use the car.