
XYZ Racing Hollow Rear Brake Kit — Subaru XV (GT) (2017-2026)
SKU: XYZ-BRK-BKR-SU-16-A-REAR
- IncludesRear axle pair (2 discs + 2 calipers)
- PositionRear
- Disc Ø356–421 mm
- Caliper pots6 / 8-pot
- Lead time10–15 working days
Fits Subaru XV (GT) (2017-2026)
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Caliper render for this kit:

The Subaru XV (GT) carries its weight high. Built on the Subaru Global Platform with raised ride height and full-time symmetrical all-wheel drive, it loads the rear axle harder than the Impreza it shares its bones with, and that mass has to be hauled down every time the road drops away or the car is run fully laden. The XYZ Racing Hollow Rear Brake Kit replaces the standard rear setup with a larger, better-cooled disc package built to cope with repeated heavy stops.
This is rear-axle braking for owners who use the XV the way Subaru intended: loaded with people and kit, towing a light trailer, descending long passes in the wet. Supplied as a matched pair of left and right corners, the two-piece floating disc sheds heat and weight, and three pad compounds let you match bite to how hard you lean on the car.
What this brake kit does for your 2017-2026 Subaru XV (GT)
A bigger rear disc gives you more thermal headroom, which is exactly what the XV needs given its height and the extra rotating mass of the AWD driveline. You feel it as a firmer, more consistent pedal on the third and fourth hard stop, rather than the long fading travel a tall crossover develops once the standard rears get hot. Stronger rear braking also settles the car’s attitude under heavy deceleration, keeping the nose from diving as sharply and leaving the stability systems less to correct. With the Street pad compound the kit stays quiet and clean for daily and winter use; move up to the Sport or Racing compound and you trade a little noise and dust for sharper bite and higher fade resistance when the XV is worked hard or run loaded.
About the Hollow Rear Brake Kit
The kit centres on a two-piece floating rear disc, where the friction ring expands against an alloy bell to drop rotating mass and open up cooling paths, paired with an uprated caliper and pad. Less rotating mass at the rear axle means the brakes come up to temperature predictably and shed it faster, which is the single biggest factor in resisting fade on a heavy all-wheel-drive crossover. The caliper body is a hollow-cast forging as standard, with an optional Hollow Racing upgrade rated to 1000C and a two-year warranty for the hardest use. Three pad compounds are offered: a Street compound for quiet, all-weather running, a Sport compound for owners who want more initial bite without track-pad noise, and a Racing compound for circuit work. Caliper finish is your call at no extra cost, with Red, Yellow, Gold, Black and Anodized Black on the menu plus a Custom Color in any Pantone for £150 and premium polished-forged and candy options if you want to match or contrast the bodywork; disc faces are drilled or slotted at the same price, and the centre bell upgrades to a five-colour anodized two-tone or titanium at checkout. Everything is sized for the rear of the XV rather than adapted from another model, so the clamping load and geometry suit the chassis it is going on.
Fitment for the Subaru XV (GT) (2017-2026)
This kit is built for the GT-generation Subaru XV across the full 2017 to 2026 production run and fits the rear axle only. Confirm your exact build year against the selector before ordering, and pair it with a matching front kit if you want balanced braking front to rear.
What buyers also search for
- Subaru XV (GT) rear brake upgrade for towing and fully laden driving
- Subaru XV big brake kit that resists fade on long wet descents
- Subaru XV (GT) rear disc with Street, Sport and Racing pad compound options
- Subaru XV caliper colour choices including Red, Black, Gold and a Custom Pantone
- Subaru XV (GT) rear braking upgrade for year-round AWD use
Choose your pad compound and caliper colour from the options above, then configure your XV (GT) rear brake kit.
What’s in the kit
Rear axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 356–421 mm: you pick the exact diameter with the "Disc size" option
- 2×Lightweight aluminium centre bells
- 2×Forged aluminium calipers — 6 / 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: Electronic parking brake (EPB) compatible.
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.

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