XYZ Racing Circuit Master Coilovers — Mercedes-Benz AMG GT S/ GT C 2015-2023

The AMG GT’s front-mid engine and rear-transaxle layout puts the M178 V8 behind the front axle and the gearbox over the rear, spreading mass to both ends of the car rather than concentrating it centrally. That polar distribution makes the GT S and GT C sharp on turn-in but demanding through direction changes, where the rear end can step out faster than the driver expects if the damping isn’t matched to the load. XYZ Racing’s Circuit Master coilover is built to give that transaxle-balanced chassis a damping curve that keeps both ends working together under sustained circuit loads.

For track days and repeat lap sessions in a GT S or the wider-track GT C, this is a full circuit-focused coilover rather than a fast-road compromise. It’s set up for drivers who already know their chassis and want the front and rear axles to load and unload predictably corner after corner, not a softer kit dressed up for occasional use.

What this coilover does for your 2015-2023 Mercedes Benz AMG GT S/ GT C

Independent adjustment at each corner lets you set the front end firm enough to control dive under trail-braking into slow corners, while keeping the rear compliant enough to put the M178’s torque down out of the exit without the transaxle mass unsettling the car. The monotube damper design resists fade over repeated heat cycles, which matters on a car whose rear-biased weight already asks a lot of the outside rear tyre through fast direction changes. Lower ride height brings the centre of gravity down and tightens body control through the GT’s naturally quick steering rack, and the wide adjustment range means you can firm up specifically for a circuit like Silverstone’s high-speed sweeps or soften slightly for a bumpier UK trackday venue without changing parts.

About the Circuit Master coilover

Circuit Master is XYZ Racing’s dedicated circuit-spec range, developed and run by XYZ’s own racing teams across international competition before it reaches road cars. Each damper carries 9,720 individual adjustment combinations through three external knobs, giving a genuinely fine window between too soft and too harsh rather than a handful of coarse steps. The small-orifice oil-flow design that makes that range possible can produce a faint noise over sharp bumps or kerbs; that’s the valving doing its job, not a fault, and it’s a known characteristic of this level of adjustability. Construction favours circuit durability over daily-drive comfort, with the damper and spring specification built around holding a consistent rate through the higher body loads a GT sees on track rather than around motorway ride quality.

Fitment for the Mercedes Benz AMG GT S/ GT C (2015-2023)

This kit is built for the ME54 chassis Mercedes Benz AMG GT S and GT C, covering the 2015 to 2023 production run. Confirm your exact model variant against the ME54 chassis code before ordering, as the GT C’s wider rear track is accounted for in this fitment.

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Pick the damping and ride height spec that suits your GT S or GT C and configure yours below.