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Big Brake Kit

XYZ Racing Hollow Front Brake Kit — Subaru IMPREZA GRB GH3 (2007-2013)

SKU: XYZ-BRK-BKF-SU-05-C-FRONT

  • IncludesFront axle pair (2 discs + 2 calipers)
  • PositionFront
  • Disc Ø286–444 mm
  • Caliper pots4 / 6 / 8 / 12-pot
  • Lead time10–15 working days

Fits Subaru IMPREZA GRB GH3 (2007-2013)

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£1,600.00Inc. VAT

Lead time: 10–15 working days from payment


£1,600.00

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 — Subaru IMPREZA GRB GH3 (2007-2013) — 286 mm
286 mm

The GRB STI arrived as a hatchback-led rethink of the Impreza formula, its EJ257 2.5-litre flat-four delivering around 300bhp through symmetrical AWD, a drivetrain that rewards exactly the kind of committed trail braking that exposes stock front pads. The symmetrical layout keeps the chassis composed well past the point where the factory compound starts to fade, and on a back-to-back track day or sprint event that ceiling arrives earlier than the car deserves. The XYZ Racing Hollow Front Brake Kit for the Subaru Impreza GRB GH3 addresses that gap directly.

For GH3 owners on the 1.5i naturally aspirated variant the picture is different but the argument is just as clear: the factory front stoppers were specified to a road-only brief, and this kit replaces rather than extends that brief. It is a single-axle kit, a matched pair of front calipers and two-piece floating discs for the left and right corners, with pad compound, disc style and caliper finish all selected when you order.

What this brake kit does for your 2007-2013 Subaru IMPREZA GRB GH3

On the GRB STI, the meaningful gain is pedal consistency across a session, targeting the fade that creeps into the third and fourth passes of a technical corner sequence. On the GH3, the improvement is more fundamental: initial bite and pedal feel the 1.5i’s standard fitment never offered. The hollow-vane disc draws cooling air through the rotor body so heat sheds continuously, and the two-piece floating discs pair an aluminium centre bell with an iron friction ring to hold the disc true through repeated heat cycles while trimming rotating mass at the wheel.

Three pad compounds allow precise matching to use. Street is the quiet, low-dust road default; Sport adds bite and heat range for fast-road driving with the occasional track day, where progressive response over raw aggression matters; Racing is a full circuit compound for those building around a track programme. Braided stainless lines are included for a firmer, more repeatable pedal than rubber hoses that swell under pressure.

About the Hollow front brake kit

The hollow-vane name describes the disc’s internal ventilation. Cooling channels run through the rotor body and draw air across the friction surfaces while the wheel turns, so heat clears into the airstream rather than soaking into solid iron. The calipers are hollow-body as standard for stiffness without excess weight, and the kit covers the front axle as a pair across both the GRB STI hatchback and the GH3 body. Building compound choice into the product removes the need to source performance pads separately, so customers who need circuit-capable hardware do not have to return to the market after fitment.

Discs come drilled or slotted at the same price, so you can choose on looks or wet-weather feel. Included caliper finishes are Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color to any Pantone code for a small upcharge. Premium polished-forged finishes (Titanium, Polished Gold, Polished Silver) and candy finishes (Candy Teal, Candy Blue, Candy Red, Candy Orange) sit in a separate upgrade tier. Two-tone centre bells in five anodized colours, or a titanium bell, are selectable at checkout. For serious track use there is an optional Hollow Racing caliper, run without a dust cover, rated to 1000C and backed by a two-year warranty.

Fitment for the Subaru IMPREZA GRB GH3 (2007-2013)

This front big brake kit is confirmed for the Subaru Impreza GRB and GH3 chassis covering the 2007 to 2013 production run and fits the front axle as a left-and-right pair. The GRB code designates the WRX STI hatchback; the GH3 covers the 1.5i hatchback variant sharing that generation’s platform. Buyers on the concurrent GRF saloon or GE saloon variants should verify against the separate fitment reference for those chassis, as they are not covered here.

What buyers also search for

  • Subaru Impreza GRB STI front brake upgrade for track days and sprint events
  • Subaru Impreza GH3 big brake kit with selectable pad compound for road and circuit use
  • GRB Impreza front brake fade solution for back-to-back session driving
  • XYZ Racing Hollow brake kit for 2007-2013 Subaru Impreza hatchback with caliper finish choice
  • Subaru Impreza GRB front brake kit with Racing compound and custom Pantone caliper finish

Select your pad compound, disc style and caliper finish when you order, and the Hollow kit is built to match your Impreza’s brief.

What’s in the kit

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

  • 2×Two-piece floating discs — 286–444 mm: you pick the exact diameter with the "Disc size" option
  • 2×Lightweight aluminium centre bells
  • 2×Forged aluminium calipers — 4 / 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

Other products that fit this vehicle

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

  • More XYZ products for the Subaru IMPREZA GRB GH3 appear here as the rest of the range publishes.