XYZ Racing Hollow Rear Brake Kit — Porsche 996 GT3 (1999-2004)

Hanging the Mezger flat-six out behind the rear axle gives the 996 GT3 a braking signature unlike almost anything else on circuit: as weight transfers forward under braking, the rear stays loaded and keeps doing real work long after a front-engined car would have gone light. The XYZ Racing Hollow Rear Brake Kit for the Porsche 996 GT3 is built around that reality, swapping the factory rear corners for a matched pair of two-piece floating discs that pull rotating and unsprung mass out of exactly where this chassis carries its weight.

This is rear-axle hardware for owners running their 996 GT3 in anger: repeat track sessions, committed B-road driving, the odd sprint or hillclimb. Pad compound is your call across Street, Sport and Racing, so the rear end can be set up to match how hard the car actually gets used.

What this brake kit does for your 1999-2004 Porsche 996 GT3

Fit the rear kit and the first thing you feel is a calmer back end on the way into a corner. Stripping rotating mass from the rear axle sharpens turn-in and lets the discs shed heat faster between braking zones, which matters on a rear-engined car that is quick to punish a lazy rear. With the Racing compound fitted, bite holds through a full session instead of going soft after a handful of hard laps. The Street and Sport compounds keep the same hardware civil for road mileage, so a GT3 that lives in both worlds does not need two sets of discs. Caliper finishes run Red, Yellow, Gold, Black or Anodized Black at no extra cost, with a Pantone-matched Custom Color available for £150.

About the Hollow rear brake kit

The kit pairs an XYZ Racing caliper with a two-piece floating disc, the rotor running on its alloy bell so it can expand and contract under heat without distorting. The disc carries less rotating mass than a solid item of the same diameter, lowering the energy the rear axle has to convert to heat on every stop and reducing the gyroscopic load each wheel fights mid-corner. Less mass spinning at the rear means quicker thermal recovery and a rear axle that settles sooner once you are back off the pedal. The disc face comes drilled or slotted at the same price, and the centre bell can be upgraded to a two-tone anodized finish in five colours or to titanium, both chosen at checkout. The three pad compounds let you bias the same hardware from road-friendly Street through to a track-focused Racing mix, and serious circuit users can specify the optional Hollow Racing caliper, which drops the dust cover, is rated to 1000C and carries a two-year warranty. It is a rear-specific kit, designed to complement a matched front setup rather than work in isolation.

Fitment for the Porsche 996 GT3 (1999-2004)

This kit is cut for the Porsche 996 GT3 across the full 1999 to 2004 production span, covering both the early 996.1 and later 996.2 GT3. It is a rear-position kit, so confirm your front specification separately before ordering. Pad compound and caliper colour are selected when you order.

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Pick your pad compound and caliper finish and configure your 996 GT3 rear kit using the options above.