
XYZ Racing Hollow Front Brake Kit — Infiniti FX35 S50 (2003-2008)
SKU: XYZ-BRK-BKF-IN-001-FRONT
- IncludesFront axle pair (2 discs + 2 calipers)
- PositionFront
- Disc Ø330–444 mm
- Caliper pots6 / 8 / 12-pot
- Lead time10–15 working days
Fits Infiniti FX35 S50 (2003-2008)
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Caliper render for this kit:

Built on Nissan’s FM (front-midship) platform, the same architecture beneath the 350Z, the S50 FX35 carries genuine chassis ambition inside its crossover body. At close to 1,900 kg in AWD trim, that ambition eventually runs into brake hardware sized for a vehicle that prioritises composure over commitment. Push the FX35 on a long descent or a sustained mountain pass and the front brakes become the limiting factor faster than the FM platform’s suspension and steering suggest they should.
This XYZ Racing front big brake kit addresses that gap directly. It is a front-axle kit, a matched left and right pair of calipers and two-piece floating discs: larger swept area, hollow-vane heat management, and three pad compounds, Street, Sport and Racing, give the front axle hardware that finally matches what Nissan’s engineers put underneath. You choose the compound when you order.
What this brake kit does for your 2003-2008 Infiniti FX35 S50
Front brakes carry the dominant share of deceleration load on any car; on a near-1,900 kg platform with the FX35’s rear-biased AWD layout, repeated hard stops build heat in the front discs faster than standard iron can shed it. The hollow-vane disc works against this by channelling airflow through the disc face, reducing thermal soak and deferring the fade that limits the stock system under sustained use, and the two-piece floating construction lets the iron ring expand without coning so the disc stays flat and the pedal firm. Three compounds let you match the kit to actual use: Street, quiet and low-dust, for predominantly road miles; Sport for drivers who press the FM platform harder on occasion; Racing for those who want the FX35 to earn its performance-crossover reputation on circuit. Included caliper colours are Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone, sitting visibly behind the alloys as a clear signal of what has changed underneath.
About the Hollow Big Brake Kit
The kit centres on a hollow-vane disc that moves heat out of the swept face more efficiently than conventional vented iron, available drilled or slotted at the same price. The hollow construction reduces thermal mass at the disc while maintaining structural integrity under the hard-stop loads a near-two-tonne crossover generates. The caliper is a hollow-body forging as standard, with an optional Hollow Racing upgrade for serious track use that drops the dust cover, is rated to 1000C and carries a two-year warranty. Three pad grades let buyers specify to their actual use rather than accepting a single compromise compound. Caliper colour extends beyond the painted finishes to premium polished-forged Titanium, Polished Gold and Polished Silver and candy Teal, Blue, Red and Orange, with two-tone or titanium centre bells, all selectable at checkout, applied to a multi-piston body matched to the increased disc diameter. The kit is designed for front-axle fitment, complementing any rear brake work and addressing the axle that handles the largest braking force in everyday stopping.
Fitment for the Infiniti FX35 S50 (2003-2008)
This front big brake kit is built for the Infiniti FX35 on the S50 chassis, covering the full 2003 to 2008 production span. Both the AWD and the less common RWD variants share the same front suspension geometry on the FM platform, so fitment covers either drivetrain. Confirm your model year sits within the 2003-2008 window before configuring.
What buyers also search for
- Infiniti FX35 S50 front brake upgrade to address heat fade under sustained hard driving
- FX35 big brake kit with selectable Racing pad compound for circuit days
- Infiniti FX35 2003-2008 hollow-vane disc kit to match the FM platform’s sporting character
- S50 FX35 brake caliper upgrade with multiple colour options including custom finish
- Infiniti FX35 front brake performance kit for AWD crossover use beyond the daily commute
Choose your pad compound, caliper colour and disc style 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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