XYZ Racing Hollow Front Brake Kit — Infiniti FX45 S50 (2003-2008)

The FX45 S50’s party trick, dismissed by too many as a fashion statement on four wheels, is the FM platform hiding beneath its crossover bodywork. The same architecture that underpins the 350Z and G35 sits here: engine set behind the front axle line, rear-biased AWD, and a weight balance that left most contemporary performance saloons reconsidering their assumptions. Where the factory hardware shows its limits is in sustained hard braking. Nearly two tonnes of V8-powered crossover generates front-axle heat and load that the standard stoppers contain but were never developed to exceed.

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. Three pad compounds, Street, Sport and Racing, let you match the setup to how you actually drive, and the caliper colour menu makes the hardware visible through the wheels without the upgrade looking out of place on a car this composed.

What this brake kit does for your 2003-2008 Infiniti FX45 S50

The front axle carries the primary braking load on the FX45 S50: under hard deceleration weight transfers forward regardless of the FM platform’s well-balanced static distribution. Upgrading the front hardware extends the fade threshold meaningfully, which matters most when the V8 is working hard and the car is repeatedly hauled from speed. The hollow-vane disc routes air through its internal structure to shed heat faster, and the two-piece floating construction keeps the iron ring flat as it heats so the disc resists coning. The three compounds give the kit genuine range: Street, quiet and low-dust, handles everyday use; Sport raises the ceiling for fast-road driving; Racing is there for circuit days where thermal loads are relentless. Included caliper colours are Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone, as practical as it is aesthetic on a car where large-diameter wheels leave the brakes fully exposed.

About the Hollow big brake kit

The kit sits at the performance end of XYZ Racing’s brake catalogue, developed for vehicles that need to manage demanding braking loads across a range of conditions rather than a single purpose. The three-compound pad system means the same caliper and disc hardware stay in place as your use case changes; compound selection at order is the variable, not the entire kit. The hollow-vane disc is available drilled or slotted at the same price, and 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. Caliper colour extends beyond the no-cost 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, covering both high-visibility modified builds and cars running closer to factory. The front-axle fitment targets the brakes that do the heaviest work under deceleration; on a car of this mass, the front hardware earns its specification.

Fitment for the Infiniti FX45 S50 (2003-2008)

This kit is built specifically for the Infiniti FX45 S50, covering the full production window from 2003 to 2008. The S50 chassis used a consistent FM-platform front-end geometry across that run, making this a straightforward fitment across all production years. Confirm your exact specification, particularly if the car has been previously modified, before ordering.

What buyers also search for

• Infiniti FX45 S50 front brake upgrade for road and track use
• XYZ Racing big brake kit for Infiniti FX45 crossover
• FX45 S50 brake upgrade with Sport and Racing pad compound options
• Infiniti FX45 front caliper upgrade with colour-matched finish
• S50 chassis FX45 big brake kit to manage V8 crossover braking demands

Choose your pad compound, caliper colour and disc style when you order.