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Big Brake Kit

XYZ Racing Hollow Front Brake Kit — Mercedes Benz S CLASS W221 S 63 AMG (2005-2013)

SKU: XYZ-BRK-BKF-ME-068-FRONT

  • IncludesFront axle pair (2 discs + 2 calipers)
  • PositionFront
  • Disc Ø330–444 mm
  • Caliper pots6 / 8 / 12-pot
  • Lead time10–15 working days

Fits Mercedes Benz S CLASS W221 S 63 AMG (2005-2013)

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£2,000.00Inc. VAT

Lead time: 10–15 working days from payment


£2,000.00

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 Front Brake Kit — Mercedes Benz S CLASS W221 S 63 AMG (2005-2013) — 330 mm
330 mm

The W221 S 63 AMG is something of a contradiction: a car that tips the scales at more than two tonnes yet covers 0-62 mph in under 4.5 seconds, courtesy of the 6.2-litre naturally aspirated M156 V8 producing north of 510 bhp. That combination places demands on the front braking system that few luxury saloons ever have to meet. On a long Alpine descent, a spirited mountain pass, or a track-day session, the factory front hardware was never engineered to shed that volume of heat repeatedly without fade creeping into the pedal.

The XYZ Racing front brake kit answers the W221 S 63 AMG’s weight-to-performance equation directly. It is a single-axle kit: a matched pair of front calipers and two-piece floating discs for the left and right front corners, where thermal loading concentrates hardest under heavy braking. The hollow-vane disc keeps temperatures inside a range where the pad compound can work predictably, and three compound grades let you configure the same kit from daily commuting through to committed circuit use.

What this brake kit does for your 2005-2013 Mercedes Benz S CLASS W221 S 63 AMG

Two tonnes of AMG-engined prestige saloon carries enormous kinetic energy at speed, and all of it has to become heat at the front axle. The hollow-vane disc draws air through the rotor body as the wheel turns, pulling heat off the friction face faster than a solid casting and holding the discs in their working window across consecutive heavy stops. The two-piece floating disc rides on an alloy centre bell that cuts both unsprung and rotating mass, so the front end recovers composure faster and steering response stays crisp. Three pad compounds let you match the kit to how the car is actually driven: Street is the quiet, low-dust road default; Sport adds bite and heat range for fast-road work with the odd track day; Racing is a full circuit compound. Braided stainless lines firm up the pedal and keep it consistent as temperatures climb, which matters most when the S 63’s output is being used as the rev counter suggests.

About the Big Brake Kit

The caliper is forged and hollow-bodied as standard, machined to clamp the larger front disc without flex, and it ships in your choice of painted finish at no extra cost: Red, Yellow, Gold, Black, or Anodized Black. For a colour outside that palette there is a Custom Color option matched to any Pantone reference for £150. Owners after a showpiece finish can step up to the polished-forged options, Titanium, Polished Gold, or Polished Silver, or one of the candy finishes in Teal, Blue, Red, or Orange. Discs come drilled or slotted at the same price, with two-tone centre bells available in five anodized colours or titanium, all selectable when you order. For sustained track abuse there is an optional Hollow Racing upgrade, which drops the dust cover, is rated to 1000C and carries a two-year warranty. Every configuration runs the same three pad compounds, so the S 63’s front axle gets the headroom to cope when the car is braked hard from high speed, again and again.

Fitment for the Mercedes Benz S CLASS W221 S 63 AMG (2005-2013)

This kit is listed for the Mercedes Benz W221 platform in S 63 AMG specification, covering the full production span from 2005 to 2013. Confirm your exact model year and regional specification before ordering, as brake architecture can differ across variants within this window.

What buyers also search for

  • Mercedes Benz W221 S 63 AMG front brake upgrade for spirited road and track-day use
  • W221 S Class big brake kit with selectable pad compound for road to circuit driving
  • Mercedes Benz S 63 AMG brake disc with improved heat dissipation under repeated hard braking
  • XYZ Racing front brake kit for Mercedes W221 AMG with custom caliper colour options
  • Mercedes Benz S Class W221 brake system upgrade to match M156 V8 performance demands

Choose your pad compound, disc style and caliper finish when you order to build your front big brake kit for the W221 S 63 AMG.

What’s in the kit

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

  • 2×Two-piece floating discs — 330–444 mm: you pick the exact diameter with the "Disc size" option
  • 2×Lightweight aluminium centre bells
  • 2×Forged aluminium calipers — 6 / 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.

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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