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Big Brake Kit

XYZ Racing Hollow Rear Brake Kit — Subaru LEGACY BL5 φ 265/ φ 171 (2003-2009)

SKU: XYZ-BRK-BKR-SU-012-REAR

  • IncludesRear axle pair (2 discs + 2 calipers)
  • PositionRear
  • Disc Ø330–421 mm
  • Caliper pots6 / 8-pot
  • Lead time10–15 working days

Fits Subaru LEGACY BL5 φ 265/ φ 171 (2003-2009)

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£2,200.00Inc. VAT

Lead time: 10–15 working days from payment


£2,200.00

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 — Subaru LEGACY BL5 φ 265/ φ 171 (2003-2009) — 330 mm
330 mm

The BL5 Legacy hangs its EJ20 turbo flat-four and symmetrical all-wheel-drive gear over the nose, and the factory rear brakes were never sized for the speed this chassis can carry into a corner. This XYZ Racing Hollow Rear Brake Kit puts a 265mm two-piece floating rotor and a fixed caliper at the back axle, exactly where the standard saloon setup runs out of bite first under repeated heavy stops.

For a turbocharged AWD saloon that puts power down everywhere and tends to wash wide when you lean on it, rear braking capacity is what lets you trail the car into an apex rather than just scrubbing speed in a straight line. Supplied as a matched pair of left and right corners, this is the rear half of a balance-focused upgrade, built for fast-road and track use on the 2003-2009 Legacy.

What this brake kit does for your 2003-2009 Subaru Legacy BL5

After fitting, the first thing you notice is a firmer, more consistent pedal once the brakes are warm: the larger 265mm rear disc resists the fade that turns the standard setup spongy after three or four hard stops. With the Racing pad compound the rear axle keeps doing real work deep into braking zones, which steadies the BL5 under trail-braking and takes some of the understeer edge off corner entry. Choose the Sport compound for harder fast-road work with the occasional track day, or the Street compound for strong, quiet stopping with less dust on the daily commute. Painted caliper finishes, Red, Yellow, Gold, Black and Anodized Black, come at no extra cost, with a Custom Color in any Pantone available, so the hardware looks deliberate behind a set of 18-inch wheels rather than an afterthought.

About the Hollow Rear Brake Kit

The kit pairs a 265mm two-piece floating disc, where the friction ring floats against an alloy bell to shed heat faster than a solid factory rotor while trimming unsprung and rotating mass at the rear axle, with a fixed caliper and a 171mm mounting geometry sized to suit the BL5’s rear hubs. Three pad compounds cover the spread of how these cars actually get used: Street for stock-feel road driving, Sport for harder fast-road work, and Racing for track sessions where heat is the enemy. The caliper body is a hollow-cast forging as standard, clamping more evenly than the sliding factory unit, which sharpens pedal feel and helps the pad wear flat; an optional Hollow Racing upgrade rated to 1000C with a two-year warranty is offered for dedicated track use. Disc faces are drilled or slotted at the same price, and the centre bell upgrades to a five-colour anodized two-tone or titanium at checkout, alongside the choice of painted, Custom Pantone, premium polished-forged or candy caliper finishes. It is a bolt-on rear upgrade aimed at lifting thermal capacity and braking balance without re-engineering the whole corner.

Fitment for the Subaru Legacy BL5 (2003-2009)

This kit is sized for the Subaru Legacy BL5 across the 2003-2009 model years, using the φ265 / φ171 rear disc dimensions listed for this chassis. It addresses the rear axle only. Confirm your wheel clearance against the caliper before ordering, and pick the pad compound that matches how you drive.

What buyers also search for

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  • Subaru Legacy rear brake balance upgrade for the AWD turbo saloon
  • BL5 rear caliper kit with Sport and Racing pad options
  • Subaru Legacy BL5 brake kit with colour-matched calipers

Pick your caliper finish and pad compound from the options above and build yours.

What’s in the kit

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

  • 2×Two-piece floating discs — 330–421 mm: you pick the exact diameter with the "Disc size" option
  • 2×Lightweight aluminium centre bells
  • 2×Forged aluminium calipers — 6 / 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 Subaru LEGACY BL5 φ 265/ φ 171 appear here as the rest of the range publishes.