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Big Brake Kit

XYZ Racing Hollow Front Brake Kit — Mercedes Benz S CLASS W221 S 450 (2005-2013)

SKU: XYZ-BRK-BKF-ME-065-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 450 (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 450 (2005-2013) — 330 mm
330 mm

The W221 S 450 asks a lot of its brakes. Close to two tonnes of saloon, with AIRMATIC air suspension, the 4.7-litre V8, and the structural mass that makes an S-Class feel like a vault, needing to decelerate sharply when the occasion demands. Factory hardware does the job well enough, but on cars now well into their second decade, upgrading the front brake system becomes the obvious next step.

The XYZ Racing front big brake kit addresses that requirement for the W221 S 450 across its full 2005-2013 production run. Supplied as a matched pair of left and right front calipers and two-piece floating discs, with a choice of pad compound, the system can be configured to match how the car is actually used rather than how a generic fitment assumes.

What this brake kit does for your 2005-2013 Mercedes Benz S CLASS W221 S 450

The W221’s front axle carries the majority of the car’s considerable kerb weight, so front brake performance is the first thing that degrades with age and hard use. A big brake kit changes the specification rather than simply renewing it. The hollow-vane rotor draws air through the disc to manage heat, the two-piece floating bell lets the friction ring expand without coning, and reduced rotating mass sharpens response. The three pad compounds set the character: Racing is the track compound that makes circuit use viable without a separate wheel and pad swap; Sport raises bite and heat range for hard A-road driving; Street is the quiet, low-dust road default that keeps daily-driver dust and noise in check. Disc faces are offered drilled or slotted at the same price, letting the visible hardware complement, or deliberately contrast with, whatever alloy fitment surrounds it.

About the Front Brake Kit

This is a complete front brake system built around a three-tier pad compound choice, which is the detail that sets it apart from a straightforward service swap. Street covers routine use; Sport steps up the friction threshold and heat range for faster road work; Racing is the track compound that handles the elevated temperatures generated during circuit sessions. The two-piece floating, hollow-vane disc handles heat structurally, and the caliper is hollow-bodied as standard, light and stiff to resist flex, with an optional Hollow Racing upgrade for occasional track use that deletes the dust cover, is rated to 1000C, and carries a two-year warranty. Braided lines firm the pedal, and centre bells can be upgraded to two-tone anodizing in five colours or titanium at checkout. Caliper finish runs from the included painted colours (Red, Yellow, Gold, Black, Anodized Black) at no extra cost, through a Custom Color in any Pantone for 150 pounds, to premium polished-forged and candy options, so the aesthetic brief is as open as the performance brief. The kit covers the front axle only; a separate rear kit is needed for a complete four-corner upgrade.

Fitment for the Mercedes Benz S CLASS W221 S 450 (2005-2013)

This big brake kit is confirmed for the Mercedes Benz S Class W221 S 450 from 2005 to 2013, covering the complete production window for this 4.7-litre V8 variant and supplied as a left-and-right front pair. Fitment is front axle only. Verify caliper clearances against your specific wheel choice before ordering, particularly if running deeper-dish or lower-offset aftermarket alloys.

What buyers also search for

  • Mercedes Benz W221 S 450 front brake upgrade beyond a like-for-like service replacement
  • W221 S-Class big brake kit with Racing pad option for occasional track use
  • Mercedes S 450 2005-2013 front caliper kit with Custom Color choice for aftermarket wheel builds
  • W221 S 450 brake disc and caliper set for a car that carries close to two tonnes and needs hardware to match

Choose your pad compound and caliper colour from the options above, then build yours.

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