XYZ Racing Circuit Master Coilovers — Toyota MARK X GRX130 2009-2026

The GRX130 Mark X left the factory as a comfort-first rear-drive saloon: long spring travel, soft anti-roll control, and the sort of body movement that rolls onto its outside front and washes into understeer the moment you load the nose on turn-in. The XYZ Racing Circuit Master coilover exists to take that compliance out of the equation and turn a relaxed Japanese cruiser into something you can lean on through a fast sequence of corners.

This is the spec built for sustained circuit lap-time work, not a softened road comfort tune wearing a sticker. On a V6 RWD platform like the Mark X, where the front axle carries the engine and the rear has to put power down on corner exit, the Circuit Master’s job is to hold the platform flat long enough for the chassis to actually rotate.

What this coilover does for your 2009-2026 Toyota MARK X GRX130

After fitting, the first thing you feel is a body that stops leaning and starts responding. Ride height comes down off the factory arch gap, which drops the centre of gravity and tightens the GRX130’s reactions to steering input. With 9720 separate adjustment combinations across the three knobs, you can run a stiffer compression setting to control the front mass under braking, then trim rebound to keep the rear planted as the V6 loads it up out of a slow corner. The result is a Mark X that turns in cleanly, holds a chosen line, and gives you brake-zone confidence the standard dampers never offered.

About the Circuit Master coilover

The Circuit Master damper is XYZ Racing’s competition-grade design, sitting alongside their Racing Spec, Drift Spec and Tarmac Rally builds, and it has been run and developed by XYZ racing teams on international circuits over a long testing programme. Its headline feature is breadth of adjustment: 9720 distinct settings spread across three separate adjustment knobs, so damping can be matched to a specific track and tyre rather than left at a single compromise. The three-knob layout uses a small oil-passage design, and over large bumps you may hear a faint noise as the oil moves through that narrow passage. This is normal behaviour, not a fault, and is a direct consequence of building the damper for smooth circuit surfaces rather than broken back roads. Treat this as a track-focused kit first.

Fitment for the Toyota MARK X GRX130 (2009-2026)

This kit is built specifically for the GRX130-chassis Toyota MARK X across the 2009 to 2026 production span. It suits the rear-wheel-drive saloon as supplied, with the Circuit Master damper set engineered to the platform’s strut and rear geometry. Confirm your chassis code reads GRX130 before ordering.

What buyers also search for

• Toyota MARK X GRX130 coilover upgrade for circuit and track-day use
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Set your spec for the GRX130 and build yours below.