XYZ Racing Pro Rally Coilovers — Porsche 991 GT3 RS (without hydraulic lift system) (Cancellation Kit for Electronic Damping) 2016-2026

Porsche’s PASM adaptive damping was engineered to make the 991 GT3 RS exploitable on circuit – and it does that job with genuine sophistication. It has no place in a gravel rally car. The XYZ Racing Pro Rally coilover kit addresses this directly: the fitment ships with a dedicated PASM cancellation kit that removes the electronic damping system from the equation entirely, and is specified without provision for the hydraulic lift system, keeping the build clean for proper competition preparation.

The 911’s rear-engine weight bias – a characteristic that has made loose-surface Porsches genuinely competitive from the 953 Rally to the modern 991 hillclimb scene – works in the builder’s favour here. The Pro Rally’s gravel-and-snow-specific engineering allows that rear traction potential to be exploited rather than managed around by a system calibrated for smooth-surface lap times.

What this coilover does for your 2016-2026 Porsche 991 GT3 RS (without Hydraulic Lift System)

Once the PASM cancellation kit is in place, the 991 GT3 RS’s suspension becomes a fully adjustable mechanical system with no software intervention between the damper and the terrain. On loose stages, that translates to direct tunability – spring rates and damping set to match the day’s surface rather than constrained by what the factory adaptive system permits. The rear-biased weight distribution that defines the 911 platform becomes a positive variable once the geometry is freed from its street-oriented calibration; the Pro Rally’s construction accommodates the travel and compliance demands that gravel and snow impose without pushing the chassis outside its operational range. For professional builds – cars with modified body structure rather than a retained road shell – the fitment design supports the more extensive preparation that serious stage competition requires.

About the Pro Rally coilover

XYZ Racing’s Pro Rally is available in two distinct configurations, reflecting the two realities of rally car building. The amateur-entry specification installs directly onto the original chassis architecture – the correct approach for lower-tier events where the production car’s shell is retained throughout the build. The professional specification is designed for installation following body modification: a caged, stripped shell where suspension mounting and geometry are optimised around competition rather than road use. Both configurations share the same engineering brief – suspension designed explicitly for gravel and snow stages rather than tarmac. Those disciplines impose significantly different demands compared to circuit work: more travel, greater compliance over rough terrain, and the ability to absorb repeated sharp impacts without losing geometry consistency. This is a different product category entirely from XYZ Racing’s tarmac-oriented coilover range.

Fitment for the Porsche 991 GT3 RS (without Hydraulic Lift System) (2016-2026)

This Pro Rally kit is specified for the Porsche 991 GT3 RS across its 2016 to 2026 production span, under chassis code PO13-C. The specification excludes vehicles fitted with Porsche’s hydraulic lift system – those builds require a separate kit. The PASM cancellation kit is included to allow installation without generating fault states from the factory electronic damping control system.

What buyers also search for

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Confirm your 991 GT3 RS specification against the fitment details above – HLS-equipped cars fall outside this kit’s scope – then configure yours below.