XYZ Racing Gravel Rally Coilovers — Toyota SUPRA J29/ A90 (Modified Rear Integrated) (Cancellation Kit for Electronic Damping) 2019-2026

The A90 Supra left the factory with electronically controlled adaptive dampers tuned for smooth tarmac, not for launching off a crest into a rutted gravel straight. That system fights you the moment the surface turns loose and unpredictable, which is exactly the scenario a Gravel Rally build lives in. This kit pairs the coilover with a cancellation module for the Supra’s electronic damping control, so the car’s ECU stops hunting for a factory damper signal that no longer exists once you’re running mechanical dampers.

With that conflict removed, the Supra’s B58-powered, rear-drive chassis gets a damper built specifically for stage work: long travel, long spring, and enough compliance to keep the tyre in contact with the ground through compressions most road-biased coilovers would bottom out on. For a car this length and this heavy over the rear axle, that matters more than outright stiffness.

What this coilover does for your 2019-2026 Toyota Supra J29/ A90

Fitted to the Supra, the inverted tube construction keeps the working shaft shielded from flung stones and grit, which is the first thing that kills a conventional damper on a gravel stage. The long stroke soaks up chassis vibration transmitted through the rear subframe on washboard sections, rather than passing it straight into the cabin and the driver’s inputs. Under hard direction changes and the sustained lateral G a Supra generates through its short wheelbase, the long spring keeps wheel control progressive instead of snapping from grip to slip. Because the electronic damping conflict is cancelled rather than worked around, the ride height and damping behaviour stay consistent stage after stage instead of drifting as the factory system tries to intervene.

About the Gravel Rally coilover

XYZ Racing built this coilover for rally and rallycross use, where the surface changes character metre to metre – sandstone one moment, silt or packed snow the next. The inverted tube layout puts the larger diameter tube at the bottom, which is the standard rally-damper answer to debris impact and side-load flex. Stroke length and spring length are both extended well beyond a circuit-spec unit, giving the damper room to work through high-speed compressions without topping or bottoming against big elevation changes. Spring rates across the range were set using data from a rally racing team’s own testing, rather than scaled down from a tarmac coilover, so the rates reflect what a car actually needs to survive repeated stage impacts and heavy cornering loads on loose surfaces.

Fitment for the Toyota Supra J29/ A90 (Modified Rr Integrated) (Cancellation Kit for Electronic Damping) (2019-2026)

Built for the J29/A90 Supra chassis code TO78-C across the 2019-2026 model years, this kit is specified for cars with the rear integrated modification and includes the cancellation kit needed to disable the factory electronic damping control. Confirm your car carries the standard rear subframe configuration this fitment assumes before ordering.

What buyers also search for

• Toyota Supra gravel rally coilover setup for stage and rallycross use
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• Gravel Rally spring rates for a rear-drive Supra chassis

Configure your Gravel Rally spec for the Supra J29/A90 below and build it to your stage.