XYZ Racing Circuit Master Coilovers — Mazda RX8 SE3P 2003-2008

The SE3P RX8’s 50:50 weight distribution and short wheelbase make it one of the most rewarding chassis Mazda ever built – and one of the most punishing of tired dampers. The stock Bilsteins go soft by 60,000 miles, the front end starts to float over crests, and the rear gets nervous mid-corner exactly when the rotary is finally on song past 7,000rpm. The Circuit Master is the answer for owners pointing a tidy SE3P at Cadwell, Donington, or a serious B-road weekend.

This is the circuit-oriented kit in the XYZ Racing range – stiffer baseline rates, ride-height adjustment independent of damper stroke, and 30-way bump/rebound to suit how the RX8 actually loads its tyres. It rewards drivers who already know what their car does at the limit and want to shift that limit higher.

What this coilover does for your 2003-2008 Mazda RX8 SE3P

The RX8 lives or dies on front-end bite, and the Circuit Master tightens that response immediately. Increased spring rates calm the dive under trail-braking into slow corners like Druids or the Old Hairpin, which keeps the front contact patch loaded where the rotary’s modest torque can actually rotate the car. The 30-way damping adjustment lets you run the rear softer for street work, then firm it up for track to stop the SE3P’s tail stepping out under throttle on corner exit. Pillowball top mounts replace the stock rubber and give you sharper turn-in – useful on a chassis that already wants to change direction. Ride height comes down without losing damper stroke, so you get the lower centre of gravity without the crashy mid-corner behaviour that ruined so many slammed RX8s on lesser kits.

About the Circuit Master coilover

The Circuit Master is built around a 32-step monotube damper with separate front and rear valving specifications. Spring rates are pitched higher than the Super Sport tier to suit dedicated circuit use, with the option to spec your own rates if your tyre choice or track diet demands it. The kit uses pillowball upper mounts for direct load transfer into the chassis, with camber-adjustable tops at the front to let you chase negative camber for the SE3P’s outer fronts under load. Construction is full-thread body with separate spring-perch and ride-height collars, meaning ride height and preload are decoupled – a small detail that matters when you’re corner-weighting the car. Damping is set via a single knob per corner, accessible without removing the wheel on most installations.

Fitment for the Mazda RX8 (2003-2008)

This kit is built specifically for the SE3P chassis – the only RX8 platform Mazda produced – covering all UK market years from launch in 2003 through end-of-production in 2008. It suits both the 192 and 231 variants regardless of trim, and works with the standard front strut / rear multi-link layout.

What buyers also search for

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• RX8 SE3P spring rate options for serious track use

Configure your Circuit Master spec below – pick spring rates, top mounts, and any custom options to suit how you actually use your RX8.