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Big Brake Kit

XYZ Racing Hollow Rear Brake Kit — Bmw 4 SERIES F 82 M4 COUPE (OE185) (2014-2020)

SKU: XYZ-BRK-BKR-BM-079-REAR

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

Fits Bmw 4 SERIES F 82 M4 COUPE (OE185) (2014-2020)

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£3,200.00Inc. VAT

Lead time: 10–15 working days from payment


£3,200.00

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 — Bmw 4 SERIES F 82 M4 COUPE (OE185) (2014-2020) — 380 mm
380 mm

The F82 M4 rotates on throttle in a way few of its rivals do. That lively, eager rear axle is the car’s signature and, on a hot circuit, its weakness. Lean on the standard rear discs through repeated heavy stops and they heat-soak; a chassis that depends on its rear brakes to settle into a corner starts to feel vague and nervous exactly when you need it composed. The XYZ Racing Hollow Rear Brake Kit for the BMW 4 Series F82 M4 Coupe (OE185) is built to take that variable out of the equation.

Designed around two-piece floating discs to strip rotating and unsprung mass from the back axle, this rear big brake kit is a pair of left and right rear calipers aimed at owners who run their M4 on track days as well as the road. Pad compound is your choice, Street, Sport or Racing, so one set of hardware suits a daily-driven car that sees the occasional circuit or one that spends its weekends at Bedford or Snetterton.

What this brake kit does for your 2014-2020 BMW 4 Series F 82 M4 Coupe (OE185)

The first thing you feel is rear-pedal consistency on a circuit that used to punish the factory setup. Cutting rotating mass at each rear corner sharpens turn-in and eases the work the rear dampers do as they recover the wheel over kerbs. Fit the Racing pad compound and the rear axle holds its bite through a full session rather than going off halfway through; choose Sport for fast-road work with the odd track day, or Street for low-dust, low-noise manners on the commute. Because the M4 leans on its rear brakes to help it rotate, better thermal headroom back here translates straight into a car you can trail-brake with confidence instead of one that goes light as the discs fade.

About the Hollow rear brake kit

The Hollow Rear Brake Kit replaces the factory M4 rear discs and calipers with a lighter, more thermally capable assembly, a pair of left and right rear calipers and matched two-piece floating discs. The disc design removes material from the rotor without giving up swept area, lowering rotating and unsprung mass at the rear axle, the change you feel as quicker recovery over bumps and less gyroscopic resistance to direction changes. The caliper body is hollow as standard, with a Hollow Racing upgrade for serious track use, no dust cover, rated to 1000C and carrying a two-year warranty. Three pad compounds are offered: Street for quiet road use, Sport for harder fast-road driving, and Racing for circuit work. The included painted caliper finishes are Red, Yellow, Gold, Black and Anodized Black at no cost, with a Custom Color in any Pantone available so the rear hardware can be matched to the car. Discs come drilled or slotted at the same price, with centre-bell upgrades selectable at checkout. Everything is sized for the F82 chassis rather than adapted from a generic fitment.

Fitment for the BMW 4 Series F 82 M4 Coupe (OE185) (2014-2020)

This kit is matched to the BMW 4 Series F82 M4 Coupe (OE185), covering the 2014 to 2020 production run, and fits the rear axle only. Confirm your car is the two-door F82 M4 Coupe within that year span before ordering.

What buyers also search for

  • BMW M4 F82 rear big brake kit for track day use
  • M4 Coupe rear brake upgrade with Street, Sport or Racing pad options
  • F82 M4 rear disc and caliper kit with lightweight two-piece rotors
  • BMW 4 Series M4 rear caliper colour options including red, black and custom

Pick your pad compound and caliper colour from the options above to build your F82 M4 rear brake kit.

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: Retains your original (OE) handbrake.

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 Bmw 4 SERIES F 82 M4 COUPE (OE185) appear here as the rest of the range publishes.