Big Brake Kit
XYZ Racing Hollow Front Brake Kit — Audi S8 4.0 D4 (2010-2017)
SKU: XYZ-BRK-BKF-AU-029-FRONT
- IncludesFront axle pair (2 discs + 2 calipers)
- PositionFront
- Disc Ø380–444 mm
- Caliper pots8 / 12-pot
- Lead time10–15 working days
Fits Audi S8 4.0 D4 (2010-2017)
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Caliper render for this kit:
Nearly two tonnes of D4-platform quattro and over 500bhp from a twin-turbocharged 4.0-litre V8 make for a car that generates enormous kinetic energy at speed, but the standard front brakes were designed around road use, not the heat cycles that arrive at a touring circuit or on a sustained Autobahn run. Repeated hard stops from 150mph-plus build temperatures that push factory pads and discs towards their limits quickly.
The XYZ Racing front big brake kit for the Audi S8 4.0 D4 directly addresses this. It fits as a matched pair of front calipers and two-piece floating discs across the front axle, with three pad compounds to match the front brake system to how the car gets used, from an improved daily setup through to circuit-capable specification. The caliper finish sits correctly behind the open-spoked alloys that typically leave the S8’s front calipers in full view.
What this brake kit does for your 2010-2017 Audi S8 4.0 D4
With a kerb weight approaching 2,000kg, the D4 S8 generates braking forces at the front axle that test any standard setup under sustained use. The hollow-vane discs increase thermal headroom and move heat out of the friction surface faster than the solid factory rotors, delaying the onset of fade when the car is worked hard in succession. The two-piece floating construction lets the disc expand without warping the bell and trims rotating and unsprung mass off the front corners, and braided lines come as part of the kit to firm up the pedal.
Three pad compounds match use. Street is the quiet, low-dust default that maintains consistent pedal feel as temperatures climb during spirited road driving. Sport adds bite and heat range for harder fast-road work. Racing extends the performance envelope further for circuit sessions. The front focus is appropriate: even with quattro distributing braking across all four wheels, nose-heavy deceleration beneath the V8’s forward weight places the greatest demand at the front corners. Included painted caliper colours are Red, Yellow, Gold, Black and Anodized Black at no extra cost.
About the front brake kit
This is XYZ Racing’s front big brake kit for the D4-generation S8, replacing the standard front assembly with a higher-specification system for owners who push beyond ordinary road speeds with any regularity. The calipers are hollow-bodied as standard for strength without excess weight, with an optional Hollow Racing upgrade for track-focused use that drops the dust cover, is rated to 1000C and carries a two-year warranty. Each pad grade suits a different operating temperature window.
Beyond the included painted finishes, a Custom Color in any Pantone is available, along with premium polished-forged Titanium, Polished Gold and Polished Silver and candy Teal, Blue, Red and Orange, which carries real weight on a car where the D4 S8’s open alloy designs leave the caliper in plain view at the wheel arch. Discs come drilled or slotted at the same price, and centre-bell upgrades, two-tone in five anodized colours or in titanium, are selectable at checkout. The front-axle application acknowledges where the longitudinally mounted V8 and quattro hardware concentrate the most braking stress under hard deceleration.
Fitment for the Audi S8 4.0 D4 (2010-2017)
This kit is designed for the D4-generation Audi S8 in 4.0-litre twin-turbo specification, covering the full 2010-2017 production window. The D4 platform underpins the complete generation, including both the standard S8 and the higher-output S8 Plus that arrived in 2015. Confirm your build year falls within this range; no additional trim specification is required for the front-axle fitment.
What buyers also search for
- Audi S8 D4 front brake upgrade for road, Autobahn, and circuit use
- Audi S8 4.0 D4 big brake kit 2010-2017 with pad compound choice
- D4 S8 front brake fade solution for high-speed driving and track days
- Audi S8 D4 caliper finish options in Red, Yellow, Gold, Black and Anodized Black
- Audi S8 D4 big brake kit for consistent pedal feel under repeated hard stops
Choose your pad compound and caliper finish from the options above, and we build the front kit for the D4-generation S8 to your spec.
What’s in the kit
Front axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 380–444 mm: you pick the exact diameter with the "Disc size" option
- 2×Lightweight aluminium centre bells
- 2×Forged aluminium calipers — 8 / 12-pot
- 2×High-stiffness mounting brackets
- 2×Braided stainless steel brake lines
- 4×High-performance brake pads (1 set)
- 1×Fitting hardware & tools pack
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 286–380mm (front). 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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More XYZ products for the Audi S8 4.0 D4 appear here as the rest of the range publishes.