XYZ Racing Hollow Rear Brake Kit — Bmw 8 SERIES E31 (OE180) (1990-1999)

The E31 8 Series carries its mass like the long-legged V12 grand tourer it was built to be, close to 1,850kg of autobahn coupe that asks a great deal of its rear axle every time you wash off speed from three figures. The factory rear setup was specified for a car that cruised more than it stopped hard, and on a chassis now firmly into classic territory, that rear-end braking margin is the first thing to feel its age. This XYZ Racing rear brake kit for the Bmw 8 Series E31 (OE180) restores authority where the standard discs run out of it.

This is a rear-axle upgrade aimed at owners keeping a 1990-1999 840Ci, 850i or 850CSi sharp for fast road and the occasional spirited drive, not a stripped-out race conversion. It gives the back of the car the bite and heat tolerance to balance the front under sustained, repeated braking.

What this brake kit does for your 1990-1999 Bmw 8 Series E31 (OE180)

On a nose-heavy GT this size, weight pitches forward hard under braking, so the rear contributes its share early in the stop and then again as the car settles, and the rear kit makes both phases more progressive. The hollow-vane two-piece disc shaves rotating and unsprung mass at the rear axle, which the E31’s softly-sprung tail appreciates over broken surfaces, while its floating construction lets it expand under heat without warping. The three pad compounds let you match bite and dust to how the car is actually used: Street for quiet, low-dust classic miles, Sport for firmer bite and a wider heat range on harder backroad work, and Racing for sustained high-temperature stops. Pedal feel stays firmer deeper into a series of stops, and the rear no longer fades before the front when you ask the 8 Series to haul down repeatedly.

About the Hollow rear brake kit

The Hollow rear brake kit takes its name from the disc: a hollow-vane two-piece design that removes mass from the internal structure to cut weight and help shed heat rather than trapping it. The paired calipers clamp a larger effective swept area than the original BMW rear hardware, raising thermal capacity for a heavy coupe, and the kit ships as a matched left-and-right pair with braided lines and brackets sized to the chassis. Pad compound is a buyer choice across Street, Sport and Racing friction materials, so the system can be specified quiet and low-dust or aggressive and heat-stable. The caliper is a hollow-body unit as standard, with an optional Hollow Racing version rated to 1000C and a two-year warranty for harder use. Included painted finishes are Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone and premium polished-forged and candy options above that, which reads cleanly through the E31’s period alloys. Discs come drilled or slotted at the same price, and two-tone anodized or titanium centre bells are selectable. The kit is engineered as a rear-axle complement to a matched front setup, keeping front-to-rear bias sensible on a car never meant to brake like a hot hatch.

Fitment for the Bmw 8 Series E31 (OE180)

This kit is specified for the Bmw 8 Series E31 chassis (OE180 reference) across the full 1990 to 1999 production run. It fits the rear axle. Confirm your exact variant and current rear hub specification before ordering, as the E31 spans several drivetrain and brake specifications over its life.

What buyers also search for

• Bmw 8 Series E31 rear brake upgrade for a heavy V12 grand tourer
• E31 840Ci and 850i rear disc kit with hollow-vane lightweight discs
• 8 Series rear brake kit with Street, Sport and Racing pad compound options
• BMW E31 caliper colour choices in red, yellow, gold, black or custom
• Classic 1990s 8 Series braking refresh for fast-road use

The E31 deserves brakes that match its reach, so choose your pad compound and caliper colour using the options above when you order.