XYZ Racing Top Sport Coilovers — Honda CIVIC SI FB6/FG4 TYPE 2 2012-2015

The ninth-gen Civic Si sedan is a chassis that rewards a firmer hand than its factory damping ever offered. Honda set the FB6/FG4 up soft to keep it civil on US suburban roads, which leaves European drivers with a front end that washes wide on quick direction changes and a rear that takes too long to settle after a kerb strike. The XYZ Racing Top Sport coilover is the fix for owners who want their K24-powered Si to actually behave like the sports compact Honda’s marketing implied.

Top Sport is XYZ’s circuit-and-street pairing – stiffer than their street-only kit, calmer than their full track range. For a 2012-2015 Si that sees a Cadwell trackday in the morning and the M1 home in the evening, this is the spec that earns its keep.

What this coilover does for your 2012-2015 Honda Civic SI FB6/FG4 TYPE 2

Spring rates run 30-50% above XYZ’s street setting, with the option of roughly 2kg/mm higher than the comfort baseline – enough to control the FB’s nose-heavy weight transfer under trail braking without turning the cabin into a kidney test. The damping is tuned to absorb the sharper impacts a stiffer rate would otherwise pass through, so a broken patch of B-road or a kerb at Brands Indy is taken cleanly rather than skipped over.

You get adjustable height for stance and centre-of-gravity work, sharper turn-in into long sweepers, and a settled rear axle that lets you commit earlier to throttle on corner exit. The tyre stays loaded through transitions, which is where the FB6/FG4 chassis tends to give up grip on the factory setup.

About the Top Sport coilover

Top Sport is built around XYZ’s racing programme – the damping curves and spring rates are taken directly from their Top Sport circuit testing, then de-tuned just enough to make the kit street-tolerable. The construction targets vehicle stability over uneven surfaces, with damping that suppresses body movement after a large bump rather than letting the chassis pogo through the next corner.

The brief is straightforward: absorb impacts, suppress unwanted body motion, increase mechanical grip at the tyre contact patch. It is suitable for track day driving and aggressive road use, which is the honest description – this is not a comfort coilover and it is not a full slick-tyre race coilover. It is the middle spec, and it is the right middle spec for a Civic Si that gets used.

Fitment for the Honda CIVIC SI FB6/FG4 TYPE 2 (2012-2015)

This kit is specified for the ninth-generation Civic Si sedan, chassis code HN68, covering the 2012 through 2015 model years. It fits the FB6 and FG4 Type 2 variants as supplied by Honda for this period. Confirm your chassis code in the configurator below before ordering.

What buyers also search for

• Honda Civic Si FB6 coilover upgrade for trackday and road use
• 2012-2015 Civic Si suspension kit with adjustable ride height
• K24 Civic Si damping setup for European B-roads
• Ninth-gen Civic Si FG4 coilovers from a circuit-tested platform
• Honda Civic Si HN68 chassis lowering kit with track-grade damping

Pick your spring rate and ride-height spec in the configurator below.