XYZ Racing Gravel Rally Coilovers — Toyota MARK X GRX120 2004-2009

Gravel changes everything the GRX120 Mark X was built around. Toyota tuned this rear-drive V6 saloon for quiet motorway miles, not for launching off a crested stage road into silt, and that gap is exactly what the XYZ Racing Gravel Rally coilover exists to close. It trades the soft, undamped factory setup for a long-stroke damper that can soak up a battered loose surface and still keep control of roughly 1,500 kilos of saloon under load.

This is the loose-surface specialist in the XYZ Racing range, developed for rally and rallycross rather than tarmac. For a grey-import GRX120 being prepped for gravel, club rally or rallycross, it is the kit that matches the discipline instead of asking a circuit damper to survive somewhere it was never meant to go.

What this coilover does for your 2004-2009 Toyota MARK X GRX120

The long stroke is the part you feel first. Where a road or track coilover runs out of travel the moment a gravel road turns rough, this damper keeps the tyre loaded over ruts, compressions and the landing from a jump, so the rear axle of the Mark X actually puts its V6 torque down instead of skipping sideways. The longer springs let you carry real suspension travel without bottoming out, and the rally-tested rates stop the body wallowing when you lean the car into a loose corner and load up the available grip. On a heavy rear-drive saloon that soft factory body control matters: valve it wrong and the car gets nervous on a broken stage, so the damping here is set to keep the GRX120 settled and predictable when the surface is anything but.

About the Gravel Rally coilover

XYZ Racing built the Gravel Rally coilover for the most punishing motorsport surface there is – the loose, broken, unpredictable ground of a rally or rallycross stage. The headline feature is an inverted tube layout, which puts the larger, stiffer body at the top of the strut to resist the bending loads a gravel road throws at the suspension and to keep the damper working as the surface shifts between sandstone, snow and silt. Long stroke and long springs are central to the design: together they absorb chassis vibration, let the car attack a fast, bouncing road without running out of travel, and carry the heavy lateral G-force loads that build as the car is turned in at speed. Every spring rate in the kit has been tested by XYZ Racing’s rally team rather than guessed at a desk, so the settings reflect genuine stage conditions on a car like the Mark X.

Fitment for the Toyota MARK X (2004-2009)

This kit is built specifically for the Toyota MARK X on the GRX120 chassis code, covering the 2004 to 2009 model years of the X120 generation. Check that your chassis code reads GRX120 before ordering, as the Gravel Rally spec listed here is matched to that exact code.

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Check that your chassis code reads GRX120, then configure your Gravel Rally coilover spec for the Mark X below.