Big Brake Kit
XYZ Racing Hollow Front Brake Kit — Bmw 3 SERIES F 34 3 GT (2012-2018)
SKU: XYZ-BRK-BKF-BM-073-FRONT
- IncludesFront axle pair (2 discs + 2 calipers)
- PositionFront
- Disc Ø330–444 mm
- Caliper pots6 / 8 / 12-pot
- Lead time10–15 working days
Fits Bmw 3 SERIES F 34 3 GT (2012-2018)
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Caliper render for this kit:
The F34 Gran Turismo brought a longer wheelbase and a raised liftback roofline to the F30 platform, along with a kerb weight that sits noticeably above the equivalent saloon, regardless of engine. BMW’s front brake specification was shared across the F30 family; the GT body’s additional mass asks more of that same hardware on any road that rewards the engine.
The XYZ Racing front brake kit replaces the front hardware with components rated for the F34’s actual weight class. It is a single-axle upgrade, a matched pair of front calipers and discs. Three pad compounds are chosen when you order, and a full range of caliper finishes lets the kit integrate with your wheel choice from the start.
What this brake kit does for your 2012-2018 Bmw 3 Series F34 3 GT
Upgrading the front axle on the F34 addresses the axle absorbing the majority of braking load, relevant given the GT body’s higher mass and raised centre of gravity over the F30 saloon. A big brake kit’s increased disc diameter and swept area spread thermal load more widely at each braking event, which counters the creeping pedal fade that appears on a fast mountain road after a succession of hard stops. Two-piece floating discs reduce rotating mass and ride on an aluminium centre bell that lets the friction ring expand cleanly under heat, with hollow-vane internals drawing air through the disc body.
The Sport compound broadens the operating temperature window above the Street default, giving a consistent pedal from a cold start through to a hard cross-country run. Racing extends that window further, the correct choice for the driver who takes the F34 to circuit days, where the GT’s mass works hardest against its standard hardware in long braking zones. Street is the quiet, low-dust compound for everyday use.
About the Hollow brake kit
The XYZ Racing caliper is built on a hollow body as standard, replacing the factory caliper-and-disc combination on the F34 platform with components built for the GT body’s weight. Pad compound is selected at purchase, Street, Sport, or Racing, so the kit arrives set up for the use case rather than requiring an immediate swap after fitting.
Discs come drilled or slotted at the same price, and the centre bell can be specified two-tone in five anodized colours or in titanium. Caliper colour is painted at no cost in Red, Yellow, Gold, Black, or Anodized Black; Custom Color matches any Pantone for £150; and premium polished-forged (Titanium, Polished Gold, Polished Silver) and candy finishes (Candy Teal, Candy Blue, Candy Red, Candy Orange) take the look to show grade, covering the wheel finishes and body colours the F34 is commonly specified with. The Hollow Racing caliper upgrade (no dust cover, rated 1000C, two-year warranty) and braided lines suit serious track use. The kit addresses the front axle, which takes the majority of braking workload under hard deceleration, particularly so with the heavier F34 body over a standard F30.
Fitment for the Bmw 3 Series F34 3 GT (2012-2018)
This kit is built for the BMW 3 Series F34 3 GT, covering the full production run from 2012 through 2018. The F34 shares front subframe architecture with the F30 saloon and F31 Touring but is a distinct body variant with its own wheel-to-arch clearance and brake-to-caliper dimensions. Confirm your specific wheel and tyre combination, particularly if running non-standard offsets, before ordering.
What buyers also search for
- BMW F34 3 GT front brake upgrade for drivers who use the Gran Turismo body at pace
- BMW 3 Series F34 big brake kit with Sport and Racing pad compounds
- XYZ Racing hollow-vane brake kit for BMW F34 3 GT with custom caliper colour at order
- BMW 3 Series Gran Turismo 2012-2018 front caliper upgrade to complement aftermarket wheels
- BMW F34 3 GT brake fade solution for sustained high-speed or repeated deceleration
Select your pad compound, caliper colour, disc style, and centre bell from the options above when you order.
What’s in the kit
Front axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 330–444 mm: you pick the exact diameter with the "Disc size" option
- 2×Lightweight aluminium centre bells
- 2×Forged aluminium calipers — 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 Bmw 3 SERIES F 34 3 GT appear here as the rest of the range publishes.