Big Brake Kit
XYZ Racing Hollow Front Brake Kit — Lexus GS 450h (2012-2026)
SKU: XYZ-BRK-BKF-LE-017-FRONT
- IncludesFront axle pair (2 discs + 2 calipers)
- PositionFront
- Disc Ø330–444 mm
- Caliper pots6 / 8 / 12-pot
- Lead time10–15 working days
Fits Lexus GS 450h (2012-2026)
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Caliper render for this kit:
The fourth-generation GS 450h carries a significant weight premium over its petrol-only sibling, the hybrid battery pack pushing kerb weight above 1,860 kg, and that mass falls hardest on the front axle under deceleration. At higher speeds, where regenerative braking contributes progressively less, the front hydraulic system shoulders a disproportionate share of the stopping work, and the OEM calipers and discs reach their thermal ceiling faster than drivers of a 345 bhp-combined saloon might expect.
The XYZ Racing Hollow Front Brake Kit addresses both the thermal load and the pedal consistency GS 450h owners find wanting when the car is used seriously. It is supplied as a matched pair of front calipers and two-piece floating discs. Three compounds, Street, Sport, and Racing, let the front-axle setup match how hard and how often the brakes are genuinely asked to work, from everyday commuting through to track use where regen drops out of the picture entirely.
What this brake kit does for your 2012-2026 Lexus GS 450h
The hollow-vane disc reduces rotating mass compared to a solid disc, which matters on a car this side of 1,860 kg. Lighter rotating mass sharpens initial bite and improves thermal recovery between heavy brake applications, a real gain when the regenerative calibration of the GS 450h’s brake-by-wire system can make the hydraulic front brakes feel inconsistent under repeated load. Choosing the Sport or Racing compound raises the operating temperature ceiling, smoothing the transition between regen and friction braking that gives the standard setup its slightly unpredictable character; Street is the quiet, low-dust default. Caliper colour is included in Red, Yellow, Gold, Black, or Anodized Black at no extra cost, useful on a car whose factory 19-inch rims rarely show much behind the standard setup. Custom Color matches any Pantone for £150, with premium polished-forged finishes in Titanium, Polished Gold, and Polished Silver, and candy finishes in Teal, Blue, Red, and Orange.
About the Hollow Front Brake Kit
The kit uses drilled or slotted discs built around a hollow-vane construction, a design that prioritises heat dissipation and weight reduction over the mass of a conventional solid disc. The slotted or drilled face promotes gas and debris clearance, keeping pad contact consistent through repeated high-energy stops. The two-piece floating disc lets the rotor expand cleanly under heat, and braided lines keep the pedal firm. The caliper is hollow-bodied as standard, with a Hollow Racing upgrade for speeds where the regenerative system contributes little, no dust cover, rated to 1000C, two-year warranty. Compound choice is the key variable for the GS 450h: Street suits blended braking across normal mixed driving; Sport extends the thermal window for mountain passes or the occasional circuit; Racing is rated for sustained high-temperature use. Caliper colour is included across Red, Yellow, Gold, Black, and Anodized Black, with Custom Color and premium finishes alongside. Two-tone anodized centre bells in five colours or titanium are selectable at checkout. The front-position specification targets the axle carrying the majority of the dynamic braking load in the GS 450h’s rear-wheel-drive layout.
Fitment for the Lexus GS 450h (2012-2026)
This kit is confirmed for the Lexus GS 450h on the fourth-generation L10 platform, covering the full 2012 to 2026 span. The front-axle specification is built around the OEM mounting geometry of the GS 450h, not shared with the GS 300h or the GS F, which run different front upright configurations.
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Pick your compound, caliper colour, and disc style when you order above.
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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