
XYZ Racing Hollow Rear Brake Kit — Mercedes Benz GT-R AMG (OE360) (2017-2026)
SKU: XYZ-BRK-BKR-ME-083-REAR
- IncludesRear axle pair (2 discs + 2 calipers)
- PositionRear
- Disc Ø380–421 mm
- Caliper pots8-pot
- Lead time10–15 working days
Fits Mercedes Benz GT-R AMG (OE360) (2017-2026)
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Caliper render for this kit:

The AMG GT R hangs its dual-clutch gearbox over the rear axle, and that transaxle mass is exactly what cooks the rear brakes once you start stringing flying laps together. Affalterbach’s standard rear setup is comfortable on the road, but sustained circuit work asks far more of the back end than the factory calipers were ever meant to give. This XYZ Racing Rear Big Brake Kit for the Mercedes Benz GT-R AMG (OE360) goes after that rear axle directly.
It is a rear-only upgrade, sized to the OE360 designation and supplied as a matched pair of rear calipers and rear discs, built to hold a firm and repeatable pedal while the rear discs soak up the heat a heavy, rear-driven coupe loads onto them through a long braking zone. The two-piece floating disc trims rotating mass at the back wheels, which helps the rear-steer-equipped GT R settle on corner entry rather than fighting unsprung inertia.
What this brake kit does for your 2017-2026 Mercedes Benz GT-R AMG
After fitting, the change you feel most is rear thermal headroom: the bite stays consistent deep into a session instead of going long and wooden the way a tired OE rear can. That stability lets you shift brake balance rearward in a controlled way, which steadies the GT R under trail-braking and gives you confidence to lean on the rear axle into slower corners. The Racing pad compound resists fade under repeat heavy stops, the Sport compound widens the heat range for hard fast-road use, while the Street compound keeps the car civil and quiet for road use. Caliper finishes, Red, Yellow, Gold, Black, Anodized Black or a Custom colour, let the rear hardware match the rest of the car behind the wheels.
About the rear big brake kit
The kit is XYZ Racing’s rear-axle disc and caliper package, built around a two-piece floating disc whose lightened ring cuts rotational and unsprung weight without giving up swept area; the ring is offered drilled or slotted at the same price. It is built around the OE360 rear specification so the geometry matches the GT R’s existing rear setup. Three pad compounds ship as options: Street for everyday, low-dust driving, Sport for fast-road use and a wider heat range, and Racing for circuit sessions where heat is the limiting factor. The caliper is hollow-bodied as standard, with a Hollow Racing upgrade (no dust cover, rated to 1000C, two-year warranty) for serious track use. Painted finishes are included at no cost in Red, Yellow, Gold, Black or Anodized Black; a Custom Color in any Pantone is GBP 150, and premium polished-forged finishes (Titanium, Polished Gold, Polished Silver), candy finishes (Candy Teal, Candy Blue, Candy Red, Candy Orange) and two-tone or titanium centre bells are also available. The whole kit is engineered to raise the rear axle’s heat capacity and pedal consistency, the two things that fail first when a road-spec GT R is taken onto a circuit.
Fitment for the Mercedes Benz GT-R AMG (OE360) (2017-2026)
This kit fits the rear axle of the Mercedes Benz GT-R AMG (OE360), model years 2017 to 2026. It is sized to the OE360 rear designation and is a rear-position kit only. Confirm your car’s OE360 rear setup before ordering.
What buyers also search for
- Mercedes AMG GT R rear big brake kit for track day use
- GT-R AMG (OE360) rear brake upgrade that resists fade under repeat stops
- AMG GT R rear caliper colour options: Red, Black, Yellow, Gold or Custom
- GT R rear pad compound choice for road versus circuit driving
- Two-piece floating rear disc kit to cut unsprung weight on the AMG GT R
Pick your pad compound and caliper finish for the GT-R AMG (OE360) rear axle and configure yours using the options above.
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: 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.

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 Mercedes Benz GT-R AMG (OE360) appear here as the rest of the range publishes.