XYZ Racing Circuit Master Coilovers — Porsche 991 GT2/ RS (without hydraulic lift system) (Cancellation Kit for Electronic Damping) 2017-2026

The 991 GT2 RS arrived from the factory with 700 bhp through the rear wheels, a rear-biased weight distribution, and a PASM setup calibrated for road use with occasional circuit stints. For a car used exclusively on track – where consistent damping response defines the entire setup baseline – that factory electronic intervention is a compromise you’re working around rather than with.

The XYZ Racing Circuit Master coilover for the Porsche 991 GT2/ RS resolves that directly. The hydraulic lift system goes, the electronic damping circuits are cancelled, and what remains is a fully mechanical coilover that responds only to what you set on the adjustment knobs.

What this coilover does for your 2017-2026 Porsche 991 GT2/ RS

The 991 GT2 RS’s rear-biased weight distribution makes rear damping consistency critical in a way that front-engined cars simply don’t demand. An unpredictable rear under braking or mid-corner reduces confidence at corner exit, and at 700 bhp, reduced confidence at corner exit costs more lap time than any aerodynamic adjustment will recover. The Circuit Master delivers the same mechanical response across every session because there is no adaptive system altering the damping curve in the background.

Spring rate and ride height adjustment allow the chassis to sit consistently relative to the 991’s aerodynamic package; at circuit speeds the car is generating real downforce, and a stable platform lets the tyres work through their thermal window rather than constantly adjusting to a moving baseline. Three independent adjustment knobs spanning 9720 total configurations give the setup team genuine scope to optimise for different circuit surfaces and ambient conditions.

About the Circuit Master coilover

XYZ Racing developed the Circuit Master specifically for competitive circuit use – tarmac rally, drift specification, and circuit racing are its reference points, not fast-road commuting. The design has been tested extensively by XYZ’s own racing teams across international events and venues, logging the kind of mileage that exposes weaknesses in valve calibration or oil management that controlled bench testing alone would not reveal.

Three separate adjustment knobs govern the damping parameters, and the small-orifice oil passage design is what creates 9720 discrete settings across the adjustment range. That engineering choice is worth understanding before installation: on very abrupt, large inputs – the kind produced by road ruts and expansion joints rather than circuit kerbing – the restricted passage can produce a brief mechanical sound as the damper works through the event. On prepared circuit surfaces this simply does not arise; the Circuit Master is optimised for smooth tarmac, where sustained session performance is the objective.

Fitment for the Porsche 991 GT2/ RS (2017-2026)

This kit is built for the Porsche 991 GT2/ RS, chassis code PO18-C, covering the 2017 to 2026 production run. It is specified without the hydraulic front axle lift system, and the installation includes a cancellation kit that removes the factory PASM electronic damping control – replacing the OEM adaptive function with fully mechanical adjustment. Confirm your car does not retain the hydraulic lift system before ordering.

What buyers also search for

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• Porsche 991 GT2 RS coilover with independent three-knob damping adjustment and 9720-setting range
• 991 GT2 RS chassis setup coilover for rear-biased RWD circuit configuration and session consistency

Review the specification options for your car’s circuit programme and configure yours using the selector below.