Big Brake Kit
XYZ Racing Hollow Front Brake Kit — Subaru LEGACY-B4 (1998-2003)
SKU: XYZ-BRK-BKF-SU-011-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 LEGACY-B4 (1998-2003)
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Caliper render for this kit:
The BE-chassis Legacy B4 was Subaru’s sports saloon in an era when the company’s motorsport reputation ran almost entirely through the Impreza. That context matters. The B4 shares its drivetrain architecture with its more celebrated sibling: symmetrical AWD, EJ-series flat-four power, and a chassis capable of a fair amount more than its understated styling let on. Owners keeping early-2000s examples alive in 2026 are doing so out of genuine enthusiasm, and they tend to know exactly where the factory hardware runs out of headroom under pressure.
The XYZ Racing Hollow Front Brake Kit gives the 1998-2003 Legacy B4 an uprated front-axle stopping package: a matched pair of front calipers and two-piece floating discs for the left and right corners. On a symmetrical AWD platform, that front axle is precisely where braking gains translate most directly into corner-entry stability.
What this brake kit does for your 1998-2003 Subaru LEGACY-B4
The B4’s symmetrical AWD loads the front axle differently from a traditional rear-drive saloon. Stopping stability is partly a question of how evenly the front and rear share the deceleration effort, and a capable front package anchors that balance. The hollow-vane disc moves cooling air through the rotor continuously under load, holding disc temperatures out of the fade window that stock iron reaches quickly during a sustained mountain pass or a track-day warm-up lap.
The two-piece floating discs run an aluminium centre bell bolted to an iron friction ring, which keeps the discs running true through repeated heat cycles and trims rotating mass at the wheel. Less rotating and unsprung weight means the brakes pick up and release faster, and the suspension settles more cleanly over surface changes. Three pad compounds let you match the friction to the use: Street is the quiet, low-dust road default, Sport adds bite and heat range for fast road with the occasional track day, and Racing is a full circuit compound for drivers chasing consistency across a longer session. Braided stainless lines are included for a firmer pedal than rubber hoses that swell under pressure.
About the Hollow Front Brake Kit
The hollow-vane design 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 sheds into the airstream continuously instead of soaking into solid iron with nowhere to go. The kit covers the front axle of the Legacy B4 as a pair, the corners carrying the majority of braking load even on an AWD car under hard deceleration.
The calipers are hollow-body as standard for stiffness without excess weight. 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 LEGACY-B4 (1998-2003)
This front brake kit is built for the Subaru Legacy B4 produced between 1998 and 2003, the BE-chassis generation, and fits the front axle as a left-and-right pair. If the car has seen previous brake modifications or carries a non-standard caliper, confirm the current front-axle specification before ordering so the kit clears your wheels and hubs.
What buyers also search for
- Subaru Legacy B4 front brake upgrade for fast-road and track-day use
- XYZ Racing hollow-vane brake kit for BE-chassis Legacy B4 (1998-2003)
- 1998-2003 Subaru Legacy B4 big brake kit with Street, Sport and Racing pads
- Subaru Legacy B4 front caliper upgrade in Red, Yellow, Gold or Black
- Subaru Legacy B4 front brake fade fix for sustained hard driving
Pick your pad compound, disc style and caliper finish when you order to spec your Legacy B4 front kit exactly how you want it.
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.
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).
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.
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More XYZ products for the Subaru LEGACY-B4 appear here as the rest of the range publishes.