XYZ Racing Tarmac Rally Coilovers — Mercedes-Benz AMG GT 4-DOOR COUPE (X290) 4WD 8CYL (Cancellation Kit for Electronic Damping) 2018-2026

Sealed-stage tarmac rally punishes a chassis in a way circuit driving never quite matches: full-bore compressions into blind crests, mid-corner surface changes from smooth asphalt to broken farm-track edge, and landings that arrive off-camber with no warning. The AMG GT 4-Door’s 8-cylinder, 4WD platform carries serious weight over the front axle, and on stock dampers that weight transfer turns a big hit into a shudder through the whole car rather than a controlled compression. This kit is built around absorbing that impact directly.

The X290’s factory electronic damping is designed for road and track use, not for the sustained high-frequency abuse of a closed tarmac stage – which is exactly why this is supplied as a cancellation kit, replacing that system with a fixed, mechanically-controlled setup tuned for the discipline.

What this coilover does for your 2018-2026 Mercedes Benz AMG GT 4-door Coupe (x290) 4WD 8CYL (Cancellation Kit for Electronic Damping)

Hit a compression at speed and the damper’s job is to absorb the jolt before it reaches the body – on a car this heavy, that means controlling how much of the impact transfers into pitch and dive at the nose. Setting the car up this way suppresses that shock through the body rather than letting it reset the chassis mid-stage, which keeps the tyre loaded and in contact instead of skipping across the surface. That matters most through the AMG GT 4-Door’s 8-cylinder weight bias, where an uncontrolled front end under braking or turn-in eats into traction exactly when a stage driver needs it. The result is a chassis that stays settled crest to crest, with stability that lets you commit to the next section rather than resetting your inputs after every bump.

About the Tarmac Rally coilover

XYZ Racing’s Tarmac Rally coilover is purpose-specified for sealed-stage work: absorbing repeated, uneven-surface impacts without the shock body losing composure. The valving is set to soak up big hits – kerbs, crests, broken tarmac edges – while still suppressing the secondary shock that follows a landing, so the chassis settles rather than continuing to move after the initial compression. That control is aimed squarely at keeping tyre contact patch consistent through exactly the kind of surface transitions a tarmac stage throws at a car. XYZ Racing states the settings are drawn directly from its own Tarmac Rally programme, so the damping characteristics reflect real stage experience rather than a generic road-and-track compromise. For a 4WD, 8-cylinder platform like the AMG GT 4-Door, that translates into a setup built to hold vehicle stability under load rather than simply stiffening the ride.

Fitment for the Mercedes Benz AMG GT 4-DOOR COUPE (X290) (2018-2026)

This kit is specified for the Mercedes-Benz AMG GT 4-Door Coupe, chassis code X290, 4WD 8-cylinder variants, covering the 2018-2026 model years. It’s supplied as a cancellation kit for the factory electronic damping system, so confirm your car retains the standard electronically-controlled suspension before ordering.

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Spec this kit against your stage notes and pick your settings below – configure yours below.