
XYZ Racing Hollow Rear Brake Kit — Alfa Romeo 159 2.4 JDM 20V (2005-2011)
SKU: XYZ-BRK-BKR-AL-002-REAR
- IncludesRear axle pair (2 discs + 2 calipers)
- PositionRear
- Disc Ø380–421 mm
- Caliper pots8-pot
- Lead time10–15 working days
Fits Alfa Romeo 159 2.4 JDM 20V (2005-2011)
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Caliper render for this kit:

The Alfa Romeo 159 was always a heavy GT, and the 2.4 JDM 20V sits at the torque-rich top of that range with most of its mass loaded over the front axle. That balance leaves the rear brakes doing quieter but important work: holding the car steady under trail braking, keeping the back end composed when you lift mid-corner, and surviving long descents without going soft. The XYZ Racing Hollow Rear Brake Kit for the Alfa Romeo 159 2.4 JDM 20V (2005-2011) is built to do that job with more heat capacity and less rotating mass than the factory rear setup.
This is a rear-axle kit, a matched pair of left and right rear calipers and two-piece floating discs, aimed at owners who use their 159 hard on fast roads, or who load it up on motorway miles and Alpine passes where standing on a tired rear brake repeatedly is what eventually cooks it. The hollow-vane disc core sheds weight where it counts and helps the rear axle clear heat between stops.
What this brake kit does for your 2005-2011 Alfa Romeo 159 2.4 JDM 20V
On a front-heavy car like the 159, the rear brakes are what stop the back stepping wide as you brake into a corner, and a bigger, better-cooled rear setup delivers that stability far more consistently than worn factory discs. You feel a firmer, more progressive pedal once the rear axle stops contributing fade on repeated stops. The hollow-vane core cuts rotating and unsprung mass at the rear, which sharpens how quickly the 159 settles over bumps.
Pad compound is your call. Street is the quiet, low-dust default that still does the commute. Sport adds bite and heat range for spirited road work with the odd track day. Racing is the full track compound for fade resistance under sustained heat. Caliper finish runs from the included Red, Yellow, Gold, Black and Anodized Black through to any Pantone as a Custom Color.
About the Hollow Rear Brake Kit
XYZ Racing’s Hollow Rear Brake Kit is built around a two-piece floating disc with a hollow-vane core, which removes material from the rotor to lower rotating mass without losing the swept area needed for heat management. Less mass spinning at the rear means the brakes come up to temperature quickly and shed it just as fast, the difference between a pedal that stays firm and one that goes long after a few hard stops. The kit is a matched rear-axle package, with disc, caliper and pad working as a set rather than a mismatched stack of parts.
Disc face is drilled or slotted at the same price, and centre bell upgrades, two-tone anodizing in five colours or titanium, are selectable when you order. Three pad compounds cover how these cars actually get used: Street for everyday driving, Sport for harder fast-road work, and Racing where outright heat resistance matters most. The caliper is hollow-body as standard, with premium polished-forged Titanium, Polished Gold and Polished Silver and candy Teal, Blue, Red and Orange beyond the included colours. A Hollow Racing caliper, with no dust cover, a 1000C rating and a two-year warranty, is there for serious track use.
Fitment for the Alfa Romeo 159 2.4 JDM 20V (2005-2011)
This kit is mapped to the Alfa Romeo 159 2.4 JDM 20V across the 2005 to 2011 production run and fits the rear axle specifically. Confirm your exact model year and trim when you order, since the 159 shared rear hardware across several variants in that period.
What buyers also search for
- Alfa Romeo 159 2.4 JDM 20V rear brake upgrade for fast-road and track use
- Alfa Romeo 159 big brake kit with Street, Sport and Racing pad compounds
- Alfa Romeo 159 hollow-vane rear disc kit to cut rotating mass and resist fade
- Rear brake kit for the 159 with included and premium caliper finishes
- Alfa Romeo 159 2.4 JDM 20V brake kit that holds a firm pedal on long descents
Choose your disc style, pad compound and caliper finish for the Alfa Romeo 159 2.4 JDM 20V, then build your rear brake kit when you order.
What’s in the kit
Rear axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 380–421 mm: you pick the exact diameter with the "Disc size" option
- 2×Lightweight aluminium centre bells
- 2×Forged aluminium calipers — 8-pot
- 2×High-stiffness mounting brackets
- 2×Braided stainless steel brake lines
- 4×High-performance brake pads (1 set)
- 1×Fitting hardware & tools pack
Parking brake: OE handbrake not retained — a hydraulic handbrake is required.
Choosing your spec
Every kit is built to order around the choices you make above. Here is what each option actually changes, so you can spec yours with confidence.
Brake pads — Street, Sport or Racing
Every kit ships with a full set of high-performance pads; the compound is your call.
Street is the right default for fast-road driving — a strong, progressive cold bite with low noise, low dust and long disc life. Sport raises the working temperature and adds bite and fade resistance for hard road use and the occasional track day, while still behaving on a cold morning. Racing is a track compound built for sustained abuse: huge fade resistance and bite once heat is in it, at the cost of more noise and dust when cold. Match the pad to how hard you actually use the brakes — there is no benefit to a race pad that never gets up to temperature.
Caliper grade — Hollow vs Hollow Racing
Hollow is the standard caliper on every kit: a hollow-body forged caliper, lighter than a solid one, fitted with a dust cover and backed by a 5-year oil-leak warranty. For most fast-road and spirited track use it is all the caliper you need.
Hollow Racing is the track-grade upgrade. It runs the same hollow body but without a dust cover (so there is nothing to melt at sustained high temperature), uses a twin-metal piston that isolates heat travelling from the disc to the oil seal, and is rated to 1000°C. Available 330–356mm (rear). Warranty is 2 years on oil leaks and 10 years on appearance. Built for professional racing and repeated track days.

Caliper colour & finish
Painted colours (Red, Yellow, Gold, Black, Anodized Black) are included at no cost. Want an exact match to your car? Custom Color (+£150) paints the calipers to any Pantone code you supply (15–20 day lead time).
Polished Forged finishes are the flagship: a forged caliper given a mirror-polished surface treatment that shifts colour with the viewing angle. Beyond the looks, the polished surface dissipates heat better, resists rust and stands up to the weather. Choose Titanium (neochrome, +£350), Polished Gold (+£300) or Polished Silver (+£250). They look their best paired with a titanium centre bell. Care: clean only with a dilute neutral cleaner or water.
Candy colours (+£200) use a deep candy-paint and polishing process for a mirror-reflection, boutique finish — pick Teal, Blue, Red or Orange (shown below right).


Centre bells
The centre bell is the CNC-machined aluminium hat that joins the disc to the hub. The standard anodized centre bell is included. The Two-tone bell (+£200) adds an anodized accent ring — choose Red, Yellow, Orange, Purple or Silver right here at checkout. The Titanium centre bell (+£500) is a forged titanium bell (bolts not included) that finishes off the polished-forged look.

Other products that fit this vehicle
Front & rear brake kits, coilovers and more for this car
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More XYZ products for the Alfa Romeo 159 2.4 JDM 20V appear here as the rest of the range publishes.