XYZ Racing Hollow Rear Brake Kit — Bmw Z3 (1996-2002)

The Z3’s rear axle has always been its character and its catch. BMW carried over a semi-trailing arm setup from the older E30 rather than adopting the E36’s multilink, which is what gives the car its quick, lift-throttle rotation and its reputation for catching owners out mid-corner. The XYZ Racing Hollow Rear Brake Kit for the BMW Z3 targets the back end specifically, replacing the modest factory rear discs and calipers with a larger, more thermally stable setup as a matched left-and-right pair.

This is a rear-axle upgrade aimed at restoring brake balance on a short-wheelbase roadster that asks a lot of its tail. With three pad compounds spanning quiet road manners through to a full Racing compound, it suits everything from a 1.9 four-pot used on the road to a six-cylinder Z3 seeing regular track time.

What this brake kit does for your 1996-2002 BMW Z3

On the road you will feel the rear settle under braking, with less of the nervous fidget the Z3 can show once the standard rear brakes start to heat-soak. Larger two-piece rotors with hollow vanes carry and shed heat better, so repeat stops from speed stay consistent rather than going long and soft, and the lighter discs trim rotating and unsprung mass at the back. Because the kit lets you match rear pad compound to use, the Street compound keeps daily manners quiet and dust-light, the Sport compound steps up bite for fast road and the odd track day, and the Racing compound holds bite deep into a session. Sizing the rear properly against the front also stops the car stepping out under hard, trail-braked entries, which is exactly the scenario a semi-trailing arm Z3 is sensitive to. Painted caliper finishes, from Red and Gold through to Anodized Black, let the hardware suit the car rather than shout over it.

About the Hollow Rear Brake Kit

The Hollow Rear Brake Kit is XYZ Racing’s rear-axle big brake package, named for its hollow-vane rotor design that trims rotating and unsprung mass at the back of the car. It is supplied as a complete rear setup: larger two-piece floating discs, calipers and pads sized to the Z3’s rear hubs, with the floating bell letting the braking ring expand under heat without warping. Pad choice runs across three compounds: Street for quiet, low-dust road feel, Sport for harder road and occasional track use, and Racing for sustained high-temperature work, so one set of hardware covers a road car or a weekend track tool. The caliper body is hollow-cast as standard, with a Hollow Racing upgrade available for serious track use that removes the dust cover, is rated to 1000C and carries a two-year warranty. Painted calipers are finished in Red, Yellow, Gold, Black or Anodized Black at no extra cost, with premium polished-forged and candy finishes available, discs drilled or slotted at the same price, braided lines included, and a centre-bell upgrade in two-tone anodized colours or titanium. The emphasis is thermal capacity and consistent rear bite rather than raw initial sharpness, which is what a tail-happy roadster genuinely wants from its back axle.

Fitment for the BMW Z3 (1996-2002)

This kit is built for the rear axle of the BMW Z3 across the full 1996 to 2002 production run, covering the four-cylinder and six-cylinder roadster and coupe variants of the chassis, as a left-and-right pair. It is a rear-position fitment only. Confirm your exact engine and brake variant against the options above before ordering, as rear hub and disc specifications can differ across the range.

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Pick your pad compound and caliper colour for the BMW Z3, then configure your rear brake kit when you order.