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Big Brake Kit

XYZ Racing Hollow Rear Brake Kit — Audi S8 4.0 D4 (12 POINTS 8.0MM) (2010-2017)

SKU: XYZ-BRK-BKR-AU-014-REAR

  • IncludesRear axle pair (2 discs + 2 calipers)
  • PositionRear
  • Disc Ø380–421 mm
  • Caliper pots8-pot
  • Lead time10–15 working days

Fits Audi S8 4.0 D4 (12 POINTS 8.0MM) (2010-2017)

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£3,800.00Inc. VAT

Lead time: 10–15 working days from payment


£3,800.00

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 S8 4.0 D4 (12 POINTS 8.0MM) (2010-2017) — 380 mm
380 mm

The D4 Audi S8 hides close to two tonnes behind a twin-turbocharged 4.0 TFSI V8 that makes covering ground deceptively effortless, which is exactly why the rear axle’s stopping power matters more than most owners assume. The XYZ Racing Hollow Rear Brake Kit for the Audi S8 4.0 D4 (2010-2017) swaps the standard rear setup for a stiffer, better-ventilated package built to absorb the heat a heavy quattro super-saloon generates under repeated hard stops.

On a car this fast and this heavy, rear brake fade announces itself as a long, vague pedal and a nose that keeps diving well after you have lifted off. This kit is aimed at owners who actually exploit the S8’s pace, with sustained fast-road driving, autobahn cruising and the occasional track day, and want the rear axle carrying its share of the deceleration rather than heat-soaking after a few big stops.

What this big brake kit does for your 2010-2017 Audi S8 4.0 D4

After fitting, the first thing you feel is a firmer, more progressive pedal that holds its travel as temperatures climb. The two-piece floating disc’s improved ventilation keeps bite consistent through back-to-back stops, so the brake balance stays predictable instead of migrating forward as the standard rears give up. Three pad compounds, Street, Sport and Racing, let you match the rear axle to how you drive the S8, whether that is refined daily commuting, harder fast-road work or circuit use. Braided lines hold the pedal firm under heat. And with five included caliper finishes plus a custom Pantone option, the kit looks the part behind the S8’s large-diameter wheels.

About the Hollow rear brake kit

The Hollow rear brake kit is built around a two-piece floating disc with hollow internal vanes, trimming rotating and unsprung mass at the rear axle where it benefits ride and response most while routing cooling air through the casting. The forged caliper is hollow-bodied as standard. Pad compound is configurable across three stages: a Street pad for quiet, low-dust road use, a Sport compound for harder fast-road driving and light track work, and a Racing compound for track temperatures. The kit ships to the rear-specific 12 Points 8.0mm mounting specification listed for this fitment, so the disc and bell geometry is matched to the D4 chassis rather than adapted from a generic part. Caliper finishes run from Red, Yellow, Gold, Black and Anodized Black at no extra cost through to a custom Pantone option, letting you set the look once and forget it. Braided lines are included, discs come drilled or slotted at the same price, and the centre bell can be upgraded to two-tone anodized in five colours or titanium.

Fitment for the Audi S8 4.0 D4 (2010-2017)

This is a rear-axle kit for the D4-generation Audi S8 4.0 across the 2010-2017 model years, a pair of rear calipers and discs built to the 12 Points 8.0mm specification (SKU XYZ-BRK-BKR-AU-014-REAR). Confirm your car is the D4 S8 with the matching rear hub spec before configuring, and pair with a front kit if you want a balanced upgrade across both axles.

What buyers also search for

  • Audi S8 D4 rear big brake kit for fast-road and track use
  • Audi S8 4.0 brake upgrade that resists fade under repeated heavy stops
  • Rear brake kit for the 2010-2017 Audi S8 with selectable pad compounds
  • Audi S8 D4 caliper colour options, Red, Yellow, Gold, Black, Anodized Black or custom Pantone

Choose your pad compound and caliper colour, then configure yours using the options above 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: 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

Other products that fit this vehicle

Front & rear brake kits, coilovers and more for this car

  • More XYZ products for the Audi S8 4.0 D4 (12 POINTS 8.0MM) appear here as the rest of the range publishes.