XYZ Racing Circuit Master Coilovers — Nissan 370 Z Z34 Rear FORK (Modified Rear Integrated) 2009-2022

The 370Z Z34’s front-engine, rear-drive balance rewards a chassis that stays composed as load shifts through direction changes, and the rear fork mount on this Circuit Master kit is built specifically around that rear-axle behaviour. This is the rear-only half of a Circuit Master install for the Z34, using a modified rear fork design that integrates directly with the factory rear mounting points rather than a bolt-in adapter plate.

For sustained circuit lap-time work, a 370Z needs its rear end doing exactly what the driver asks under trail-braking and mid-corner load – no wandering, no delayed response as the tyre works. That’s the job this rear damper assembly is built to do lap after session, not just for a single quick run.

What this coilover does for your 2009-2022 Nissan 370 Z Z34 Rr FORK (modified Rr Integrated)

With 9720 possible damping combinations across the Circuit Master’s 3-knob adjustment system, you can set rear compression and rebound independently to match tyre compound, track surface and how much weight you’re carrying into a session – then revisit that setting as conditions change through the day. The rear fork’s integrated mounting keeps the damper aligned with the Z34’s rear geometry, which matters when you’re loading the outside rear tyre hard through a fast corner and need the wheel control staying planted rather than skipping. Monotube-style construction sheds heat more consistently than a twin-tube design would under repeated hard braking into corners, which is exactly where a 370Z’s rear end gets worked over a full track day. Fitting the rear half correctly also sets up the front-to-rear balance the rest of your Circuit Master kit is tuned around, so the car turns in and rotates the way you’ve dialled it rather than fighting a mismatched rear.

About the Circuit Master coilover

XYZ Racing built the Circuit Master as its top-tier circuit damper, developed and run by its own racing teams across international events rather than designed purely on a bench. The 3-knob adjustment layout is the headline feature – 9720 total combinations mean you’re not choosing between a handful of preset stiffness levels, you’re tuning compression and rebound independently for the specific demands of a given track and tyre. Each knob works through a small oil-passage design; on rough sections of track you may hear a minor noise from oil moving through that passage under big compression events. That’s a known characteristic of the design, not a fault, and it doesn’t affect damper function or longevity – the unit is built to run on circuit surfaces where bumps and kerbs are part of the job. It’s aimed squarely at drivers running repeat sessions rather than the odd occasional trackday, where a damper needs to hold its setting and its performance across a full day of laps.

Fitment for the Nissan 370 Z (2009-2022)

This listing is the rear FORK (modified Rr Integrated) coilover for the Nissan 370Z Z34, covering the full 2009-2022 production run. The modified rear-integrated fork design mounts to the Z34’s factory rear suspension points, so confirm your car matches the Z34 chassis code before ordering.

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Match this rear fork unit to the rest of your Circuit Master setup and pick your spec below to get the Z34 dialled front to rear.