
XYZ Racing Street Advanced Coilovers — Honda CIVIC FC φ50.5 SEDAN/HATCHBACK 2015-2021
SKU: HN255-SA
- IncludesFull set of 4 (front + rear)
- Spring rate (F/R)16 / 3 kg/mm
- Top mountFront: Pillow ball + rubber / Hardened rubber · Rear: OE (factory) mount
- Lead time10–15 working days
Fits Honda CIVIC FC φ50.5 SEDAN/HATCHBACK (2015-2021) chassis HN255
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The FC-generation Civic swapped the outgoing FB platform’s softer, torsion-beam-friendly manners for a stiffer, lighter monocoque and, on most trims sold in this window, a turbocharged four pulling hard from low revs. That combination shifts more load through the front dampers under acceleration and trail-braking than Honda’s factory suspension was ever tuned to control well, and it’s the first thing an owner notices once they start driving the car with any intent.
Street Advanced is XYZ Racing’s road-and-track crossover kit for this chassis, built to soak up commuting duty without going soft the moment you point the Civic at a B-road or a track day. It’s the fitment most owners of the FC sedan and hatchback reach for when they want a coilover that does both jobs properly rather than compromising on either.
What this coilover does for your 2015-2021 Honda Civic FC Φ50.5 Sedan/hatchback
Ride height drops and body control tightens immediately, which matters on a chassis that already flexes less than its predecessor – the Street Advanced kit is built to work with that stiffness rather than fight it. The 720-way damping adjustment gives you a genuinely usable range: soften the circuit for broken UK tarmac and speed bumps, then firm it up for a trackday without swapping parts. Under braking, where the FC’s front-heavy turbo layout wants to dive and load the outside front corner, the revised damping curve keeps the nose settled so the front tyres stay planted through trail-braking rather than skating wide. Cornering roll drops noticeably compared with the factory strut and spring setup, which sharpens turn-in on both the sedan and hatchback body styles sold under this fitment. Day to day, the ride stays liveable – this is a road kit first, tuned to be lived with, not a stripped-out track-only spring rate bolted to a stock body.
About the Street Advanced coilover
Street Advanced is XYZ Racing’s core product line, developed over several seasons and refined using feedback from race teams running XYZ hardware in competition around the world. The line’s signature feature is its 720-way damping adjustment, giving a far finer resolution between comfort and control than a typical single-digit clicker – useful when you’re chasing a specific balance on a car with as much front-end load transfer as the FC Civic. It’s built for owners who split their time between normal road use and the occasional track day, rather than a car that lives exclusively on one or the other. For a Civic owner deciding between a fast-road setup and something that can still cope with a circuit outing, this is the model XYZ positions as the default choice.
Fitment for the Honda CIVIC FC Φ50.5 SEDAN/HATCHBACK (2015-2021)
This kit is built for the FC-chassis Civic, chassis code HN25-5, covering both sedan and hatchback body styles across the 2015 to 2021 model years. The Φ50.5 strut body diameter is specific to this fitment – check your Civic’s build spec against this figure before ordering, as earlier and later Civic generations use different diameters and won’t accept this kit.
What buyers also search for
- Honda Civic FC coilover upgrade for road and occasional track use
- Honda Civic sedan and hatchback suspension lowering kit 2015-2021
- Honda Civic Street Advanced damping adjustment for daily driveability
- HN25-5 chassis coilover fitment for turbocharged Civic models
- Civic FC Φ50.5 strut-diameter coilover replacement
Pick your damping range and configure the Street Advanced kit for your Civic FC below.
After tested in famous worldwide races, it reaches the ultimate quality and performance.
Street Advance is made especially for normal road use or track day. It comes with 720 damping adjusting way to satisfy your request. It is indispensable equipment for drivers aspiring speed and controlling.
Top mounts included with your kit
Every XYZ Racing coilover kit ships with the upper mounts listed below for your exact chassis — no extra parts to source.
Front
Pillow ball + rubberP+Pillow-ball upper with a rubber insert — adds steering precision and camber adjustability while keeping some of the factory mount’s harshness damping.
Hardened rubberRHardened rubber upper — firmer than the factory bush for tighter response while retaining road-friendly noise and vibration isolation.
Rear
OE (factory) mountOERetains the OEM (factory) upper mount — preserves the original ride comfort, noise and vibration behaviour for a stock-like feel.
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