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Big Brake Kit

XYZ Racing Hollow Rear Brake Kit — Ford MUSTANG (2015-2026)

SKU: XYZ-BRK-BKR-FO-007-REAR

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

Fits Ford MUSTANG (2015-2026)

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£3,000.00Inc. VAT

Lead time: 10–15 working days from payment


£3,000.00

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 Rear Brake Kit — Ford MUSTANG (2015-2026) — 380 mm
380 mm

The 2015 Mustang was the first to drop Ford’s old live rear axle for independent rear suspension, and that change put real load through the back wheels under braking. The XYZ Racing rear brake kit for the Ford Mustang addresses what the rear of an S550 or S650 actually does on circuit: managing weight transfer, keeping the car settled into a corner, and stopping the rears from cooking while the fronts handle the bulk of the work.

This is a rear-axle upgrade for owners who run their Mustang hard, track days, fast-road work, the occasional drift session where the rear brakes earn their keep. It pairs larger rotors with uprated calipers to add thermal headroom and bring rear braking balance back into line with a stronger front setup.

What this brake kit does for your 2015-2026 Ford Mustang

On a car this nose-heavy under braking, the Mustang’s rear axle is easy to neglect, and that is exactly where this kit earns its place. The larger rear rotors carry more surface area to shed heat, so repeated hard stops do not push the rear pads past their working temperature. Three pad compounds let you match the rear to how you actually drive: Street is the quiet, low-dust road default, Sport adds bite and heat range for spirited road use with the odd track day, and Racing is the dedicated circuit compound. The on-car result is a more planted rear end on corner entry, a firmer pedal that holds its bite through a session, and the braking confidence to carry speed deeper before you brake.

About the Rear Brake Kit

This is XYZ Racing’s rear-axle big brake package for the Mustang, supplied as a matched pair of calipers and two-piece floating discs for the back of the car. The rotors run internal hollow vanes that channel air through the disc to pull heat out faster and resist fade when the brakes are worked lap after lap, and they come drilled or slotted at the same price. Pad choice is yours: Street for quiet everyday driving, Sport for spirited road and light track use, and Racing for sustained circuit sessions. The hollow-body caliper is standard, with an optional Hollow Racing upgrade for serious track use that drops the dust cover, is rated to 1000C and carries a two-year warranty. Included painted finishes are Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a custom Pantone colour at £150, plus premium polished-forged Titanium, Polished Gold and Polished Silver and candy Teal, Blue, Red and Orange. Everything is sized for the Mustang’s rear hubs rather than adapted from a universal part, which keeps the geometry and front-to-rear brake balance correct.

Fitment for the Ford Mustang (2015-2026)

This kit is mapped to the Ford Mustang across the 2015 to 2026 range, covering both the S550 and the later S650 generation. It fits the rear axle as a pair and is specified for this chassis. Confirm your build year before ordering.

What buyers also search for

  • Ford Mustang rear big brake kit for track days and fast-road driving
  • Ford Mustang rear brake upgrade with Racing, Sport and Street pad compound options
  • S550 and S650 Mustang rear caliper kit in Red, Yellow, Gold, Black, Anodized Black or custom
  • Ford Mustang rear brake balance upgrade to match an uprated front big brake setup

Set your pad compound and caliper colour 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: OE handbrake not retained — a hydraulic handbrake is required.

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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