Big Brake Kit
XYZ Racing Hollow Front Brake Kit — Subaru STI (2014-2026)
SKU: XYZ-BRK-BKF-SU-015-FRONT
- IncludesFront axle pair (2 discs + 2 calipers)
- PositionFront
- Disc Ø304–444 mm
- Caliper pots4 / 6 / 8 / 12-pot
- Lead time10–15 working days
Fits Subaru STI (2014-2026)
Added to basket ✓
Caliper render for this kit:
The VA Subaru STI leaves the factory with Brembo 6-pot front calipers, perfectly good hardware for road use, but sustained track sessions show exactly where the OEM setup runs out of headroom. Repeated heavy-braking zones generate heat the stock rotors struggle to shed, and pedal confidence erodes sooner than most drivers expect. The XYZ Racing Front Big Brake Kit replaces the front assembly with hardware that matches what the STI’s chassis is genuinely capable of.
For a car that tips the scales at around 1,490 kg while channelling all its drive through a DCCD-managed all-wheel-drive system, front brake performance sits at the centre of the car’s dynamic limits. This kit addresses that directly, fitting as a pair of front calipers and a pair of two-piece front discs, with three pad compounds so the specification reflects how hard the car is actually pushed.
What this brake kit does for your 2014-2026 Subaru STI
The two-piece floating front discs improve heat dissipation under sustained use, which translates to more consistent pedal feel across a full circuit session or a demanding fast-road run through the elevation changes the STI was built for. Where the OEM Brembo setup starts to lose edge bite after repeated hard stops, the XYZ Racing assembly holds a more reliable response through thermal cycling. The hollow-vane disc casting pulls air through the friction surface to manage that heat, and the two-piece construction trims rotating and unsprung mass at the front corners for sharper response.
Three pad compounds let you match brake character to intent. Street is the quiet, low-dust road default; Sport adds bite and heat range for fast road with occasional track work; Racing is the full track compound, prioritising fade resistance for drivers working the front axle hard. Discs are offered drilled or slotted at the same price, and braided lines tighten pedal feel. Fitted behind the VA STI’s 19-inch wheels the calipers are clearly on show, so the included colours of Red, Yellow, Gold, Black and Anodized Black, or a Custom Color in any Pantone for an added charge, are worth real thought.
About the Front Big Brake Kit
The caliper is a hollow-body forged unit as standard, light and stiff, with a Hollow Racing upgrade for serious circuit use that removes the dust cover and carries a 1000C rating and a two-year warranty. The kit is built around larger two-piece floating discs that drive far more airflow through the disc face under load than a conventional unit, carrying heat away from the surface where it most affects feel and consistency.
All three pad compounds share the same caliper geometry and differ only in operating temperature window and initial bite. Finish choices go beyond the included paints to premium polished-forged Titanium, Polished Gold and Polished Silver, and a candy range of Candy Teal, Candy Blue, Candy Red and Candy Orange. Centre bells can be specified two-tone in five anodized colours or in titanium. Everything visible is chosen when you order, from the options above.
Fitment for the Subaru STI (2014-2026)
This kit is confirmed for the Subaru STI in VA-generation form, covering the 2014 to 2026 production run. It fits the front axle as a left-and-right pair, replacing the standard STI front assembly; the matching rear upgrade is available as a separate SKU. Verify your specific trim’s caliper mounting specification if your car carries any non-standard factory brake hardware.
What buyers also search for
- Subaru STI front brake upgrade for road and track use
- VA-generation STI big brake kit replacing factory Brembo front calipers
- XYZ Racing two-piece disc brake kit for 2014-2026 Subaru STI with Racing pad compound
- Subaru STI front brake kit with hollow-vane discs for sustained circuit sessions
- STI big brake kit with Custom Color caliper and compound choice
Pad compound, disc style and caliper colour are all selected when you order, so configure the front setup to your STI from the options above.
What’s in the kit
Front axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 304–444 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 STI appear here as the rest of the range publishes.