XYZ Racing Circuit Master Coilovers — Honda TSX CL9 2004-2008

The CL9 Accord Euro R-adjacent TSX was always a circuit-ready chassis hiding behind a saloon body – long wheelbase, 200bhp K24A2, a double-wishbone front end that responds to rate changes the way few mid-2000s saloons do. The Circuit Master is the spec XYZ Racing built for owners who have stopped pretending this is a daily and started timing their sessions.

This is the top-tier competition damper in the XYZ catalogue, sitting above Super Sport and Racing Spec, and engineered specifically for sustained circuit lap-time work. If you are running the CL9 at Cadwell, Donington, or a Bedford trackday programme and the standard dampers are fading by lap five, this is the replacement.

What this coilover does for your 2004-2008 Honda TSX CL9

The CL9’s front-end weight bias makes it work the front tyres hard under repeat braking – exactly the load case that cooks budget monotubes after a handful of sessions. Circuit Master is built around 3 adjustment knobs that give independent compression and rebound control plus ride-height, so you can run a stiffer rear to wake up rotation without losing front compliance on Honda’s notoriously aggressive kerbs. The 9720 distinct damper settings mean you can actually match the build to your tyre choice – Toyo R888R, Nankang AR-1, slicks – rather than picking the "closest" preset and living with it. Expect noticeably flatter turn-in, a far more predictable rear under trail-braking, and brake markers you can move ten metres deeper once the rear stops squatting. Pinion-angle and corner-weight work become possible rather than theoretical.

About the Circuit Master coilover

Circuit Master is the same chassis XYZ uses for its Racing Spec, Drift Spec, and Tarmac Rally programmes – the spec the company puts under its sponsored teams at international circuit events. Construction centres on a monotube damper with a 3-knob adjuster cluster: compression, rebound, and ride-height are separated rather than blended into a single click. The 9720 possible damping combinations come from cross-multiplying the knob ranges, which is what allows the same kit to suit a 200-treadwear semi-slick on a fast-road CL9 and a full slick on a championship car. One honest note from the manufacturer: the small oil-passage design that gives the damper its precision on smooth tarmac can produce a faint hydraulic noise over heavy bumps. That is the trade-off baked into a circuit-specific valving – it is engineered for the surface of a racetrack, not patched B-roads.

Fitment for the Honda TSX CL9 (2004-2008)

This kit is built for the CL9 chassis – the 2.4-litre K24-powered TSX sold in the US and equivalent to the Japanese Accord Euro R of the same period. Year span covers 2004 through 2008, the full first-generation production run before the CU2 replaced it.

What buyers also search for

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Configure your Circuit Master spec for the CL9 below – pick spring rate and any options before adding to cart.