XYZ Racing Hollow Front Brake Kit — Porsche 991 GT3 RS (2016-2019)

The 991 GT3 RS leaves Weissach with brakes that handle most things thrown at them on track, but push this car across a full day at the Nürburgring or a multi-session track day at Brands Hatch and thermal management becomes the live conversation. The engine sits behind the rear axle for a rearward static weight bias, yet under hard braking the nose loads heavily, the front discs absorbing the largest portion of the energy from genuine circuit speeds, stop after stop. That heat accumulates, and it needs somewhere to go.

The XYZ Racing front big brake kit for the Porsche 991 GT3 RS (2016-2019) gives owners the means to manage it directly. With three pad compounds, Street, Sport, and Racing, and a full caliper colour range, the kit lets the front axle be configured around how the car is actually used. It fits as a matched left and right pair with two-piece floating discs.

What this brake kit does for your 2016-2019 Porsche 991 GT3 RS

The hollow-vane disc creates internal airflow between the braking surfaces, drawing heat away from the friction zone more efficiently than a solid rotor across repeated circuit stops. On a car capable of the corner-entry speeds the GT3 RS achieves, that thermal recovery between braking events matters; temperatures that build unchecked across a session lead to progressive fade, and fade on a rear-engined car with this level of mechanical grip compounds quickly. The Racing compound holds its bite at temperatures the Sport compound was never rated for, while Sport makes sense for cars that see real road miles alongside track use; Street is the quiet, low-dust road compound for everything in between. Two-piece floating disc construction lets the friction ring expand and cool independently of the bell.

About the Hollow Brake Kit

The hollow-vane disc is the functional core. Where a solid disc retains heat in its mass, releasing it gradually as the brakes cool, the hollow internals form a through-duct that draws air across the friction zone under rotation, accelerating thermal recovery between stops. It is a construction suited to cars where brake cycles are sustained and frequent rather than occasional: long circuit sessions, mountain roads, and committed fast-road driving. The three compounds, Street, Sport, and Racing, let this front kit serve the realistic spread of use the GT3 RS sees, from a road-registered car that visits a track several times a year to one prepared for dedicated circuit work. The forged caliper is hollow-bodied as standard, with an optional Hollow Racing upgrade for serious track use, rated to 1000C with no dust cover and a two-year warranty. Discs come drilled or slotted at the same price.

Included painted caliper colours are Red, Yellow, Gold, Black, and Anodized Black at no extra cost, with a Custom Color in any Pantone, premium polished-forged finishes (Titanium, Polished Gold, Polished Silver), and candy finishes (Candy Teal, Candy Blue, Candy Red, Candy Orange). The wider front arches of the GT3 RS keep the calipers clearly visible through any open-spoke wheel.

Fitment for the Porsche 991 GT3 RS (2016-2019)

This kit fits the Porsche 911 (991) GT3 RS across the 2016 to 2019 production run, covering both the late 991.1 cars and the 991.2 generation. Front axle fitment only. If your car has existing non-standard front brake modifications, check the disc and caliper dimensions in the specification tab before ordering.

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Pad compound, disc style, caliper colour, and centre-bell finish are all chosen when you order. The configurator sits above this copy.