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Big Brake Kit

XYZ Racing Hollow Rear Brake Kit — Audi A3 8Y SPORTBACK (2WD) (2020-2026)

SKU: XYZ-BRK-BKR-AU-011-REAR

  • IncludesRear axle pair (2 discs + 2 calipers)
  • PositionRear
  • Disc Ø330–421 mm
  • Caliper pots6 / 8-pot
  • Lead time10–15 working days

Fits Audi A3 8Y SPORTBACK (2WD) (2020-2026)

Brake pad compound

Street: quiet, low-dust, strong cold bite for road driving. Sport: higher temperature range and more bite for fast road and occasional track. Racing: maximum fade resistance for sustained track use (noisier and dustier cold). Match the pad to how hard you actually brake.

Disc size

Caliper grade

Hollow is the standard caliper: a lighter hollow-body forged caliper with a dust cover and a 5-year warranty. Hollow Racing drops the dust cover for sustained high-temperature use (rated to 1000°C, 2-year warranty) — the track-grade choice.

Caliper colour

Painted colours are included. Polished-forged finishes are mirror-polished forged calipers (Titanium, Gold, Silver); candy colours are a deep, mirror-reflection paint. Both are premium upgrades — fuller detail further down the page.

Painted — includedTell us the exact Pantone (PMS) code you want the calipers painted.Polished forgedCandy
Disc style

Drilled discs (cross-drilled holes) vent gas and water and look aggressive; slotted discs (surface grooves) wipe the pad face clean and resist fade under sustained hard use. Same price — choose on looks or how you drive.

Centre bell

The centre bell is the CNC-machined aluminium hat that joins the disc to the hub. Standard anodized is included; a two-tone bell adds an anodized accent ring in your choice of colour; titanium is the lightest, forged option.

Carbon-ceramic rotor

Carbon-ceramic rotors are a special-order track upgrade: far lighter than steel, fade-resistant at extreme temperatures and extremely long-lived. The price follows the disc size you choose above. The standard two-piece steel rotor is included.

Configured price£2,800.00Inc. VAT

Lead time: 10–15 working days from payment


£2,800.00

Made to order. Full payment is taken at checkout. Production begins once payment is confirmed.

Pay by card, Apple Pay, Google Pay — or Klarna on eligible orders.

Caliper render for this kit:

XYZ Racing Hollow Rear Brake Kit — Audi A3 8Y SPORTBACK (2WD) (2020-2026) — 330 mm
330 mm

The 8Y A3’s front-driven layout puts most of the braking workload over the nose, which leaves the rear axle under-used and the balance front-biased the moment you start leaning on the pedal on a circuit. The XYZ Racing Hollow Rear Brake Kit for the Audi A3 8Y Sportback (2WD) addresses that by giving the rear axle more thermal capacity and a firmer, more consistent bite, so the car settles rather than pushing on as the fronts heat up.

This is a rear-axle kit built to partner a front upgrade, or to sharpen the standard setup on a fast-road or track-biased 8Y. It comes with a choice of Street, Sport and Racing pad compounds, so you can match the rear’s response to how hard the car actually gets used.

What this brake kit does for your 2020-2026 Audi A3 8Y Sportback (2WD)

On the road you get a more positive, progressive rear pedal and brakes that recover quickly after a run of hard stops down a B-road. On track, the extra rear thermal headroom keeps the balance stable as the front discs soak up heat, so the 8Y stays composed under trail-braking instead of running wide. The Street compound suits daily driving and stays quiet with low dust, the Sport pad steps up bite and fade resistance for spirited road use, and the Racing compound is there for repeated circuit sessions where pad temperature climbs fast. Selectable caliper colours, from the included painted finishes through to premium polished and candy options, let the kit read through the wheel spokes.

About the Hollow brake kit

The disc is a two-piece floating design: material is removed from the rotor to cut rotating and unsprung mass without giving up the friction surface that does the work. Less rotating mass at the rear means the brakes respond quicker and load the suspension less as the wheel travels over a surface. The caliper is hollow-bodied as standard to keep weight down, with an optional Hollow Racing build for hard track use that removes the dust cover, is rated to 1000C and carries a two-year warranty. The kit pairs the discs with calipers in your chosen colour, braided lines and three pad compounds, Street, Sport and Racing, so the same hardware covers a clean daily setup through to a circuit-focused one. Included painted caliper colours are Red, Yellow, Gold, Black and Anodized Black at no extra cost; a Custom Color in any Pantone is £150, and premium polished-forged finishes in Titanium, Polished Gold and Polished Silver and candy finishes in Teal, Blue, Red and Orange are also offered. It is a rear-position kit, designed to form the back half of a balanced package on the front-wheel-drive 8Y rather than as a standalone front upgrade.

Fitment for the Audi A3 8Y Sportback (2020-2026)

This kit is specified for the 8Y-generation Audi A3 Sportback in front-wheel-drive (2WD) form, covering the 2020 to 2026 model years, and fits the rear axle. Confirm your car is the 2WD 8Y Sportback rather than a quattro variant before ordering, as the rear setup differs between drivetrains.

What buyers also search for

  • Audi A3 8Y Sportback rear brake upgrade for road and track use
  • Audi A3 8Y 2WD big brake kit with Street, Sport and Racing pad options
  • Audi A3 8Y Sportback rear brake kit with selectable caliper colours to match your wheels
  • Lightweight two-piece floating rear discs for the front-wheel-drive 8Y A3

Pick your disc style, pad compound and caliper colour from the options above to build your Audi A3 8Y rear brake kit.

What’s in the kit

Rear axle kit — supplied as a complete bolt-on assembly.

  • 2×Two-piece floating discs — 330–421 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.

Hollow Racing caliper

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).

Polished forged caliper finishes
Candy caliper colours

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.

Two-tone anodized centre bells
Same car

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