Big Brake Kit
XYZ Racing Hollow Front Brake Kit — Lexus GS 300 JZS161 (1998-2005)
SKU: XYZ-BRK-BKF-LE-02-B-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 300 JZS161 (1998-2005)
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Caliper render for this kit:
The JZS161 GS 300 sits in an unusual corner of the 2JZ landscape: a rear-wheel-drive luxury saloon sharing its platform with the twin-turbo Aristo, powered by the naturally aspirated 2JZ-GE, and increasingly owned by people who have moved well beyond the factory 220 bhp. At something over 1,600 kg, its original front brakes were sized for quiet, unhurried motorway progress, not for the heat cycles that come with a boosted drivetrain, track days, or consistent hard use on UK A-roads.
The XYZ Racing Hollow Front Brake Kit targets the front axle directly, the JZS161’s primary braking workload given both the mass and the 2JZ engine sitting ahead of the centreline. It is supplied as a matched pair of front calipers and two-piece floating discs. Three pad compounds, Street, Sport, and Racing, match the kit to the car’s actual use profile, and the caliper finish range accommodates different build aesthetics.
What this brake kit does for your 1998-2005 Lexus GS 300 JZS161
On a car of this weight, the front axle does the bulk of the deceleration work, and the gap between standard equipment and modified-car demands on the JZS161 is significant. Upgrading the front brakes reduces fade across repeated hard stops where OE hardware loses confidence, and sharpens pedal feel under load the factory set-up was not calibrated to sustain, while the hollow-vane disc sheds heat through the rotor body. Street is the quiet, low-dust default with useful bite from cold; Sport opens a wider operating temperature range, better heat management mid-session; Racing narrows the cold-operation window in exchange for performance at elevated temperatures, the right pick for circuit use. Caliper colour is included in Red, Yellow, Gold, Black, or Anodized Black at no extra cost, so the hardware works with a visible wheel and brake installation rather than detracting from it. 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 brake kit
XYZ Racing’s Hollow range provides a front brake upgrade for the JZS161 in three pad specifications. Street suits GS 300s in near-stock condition; Sport covers the large proportion of JZS161s running engine, turbo, or suspension modifications that have raised thermal and dynamic demands beyond standard; Racing is for cars used hard enough on circuit that progressive pad fade is a genuine concern. 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 built or turbocharged 2JZ track cars, no dust cover, rated to 1000C, two-year warranty. Caliper finishes are included across Red, Yellow, Gold, Black, and Anodized Black at no upcharge, with a Custom Color route and premium finishes for builds where brake aesthetics carry weight. Discs come drilled or slotted at the same price, with two-tone anodized centre bells in five colours or titanium selectable at checkout. Compound choice sits with the buyer at configuration; the caliper hardware and front-axle fitment are common across all three options.
Fitment for the Lexus GS 300 JZS161 (1998-2005)
This kit is confirmed for the Lexus GS 300 JZS161 across the full run from 1998 to 2005. The chassis designation JZS161 identifies the second-generation GS 300 with the 2JZ-GE inline-six, and covers all body variants produced in that period. Verify your chassis code is JZS161 before ordering; other GS-series designations sit on different platforms and use different brake fitments.
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Select your pad compound, caliper colour, and disc style when you order above to build your front brake kit.
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 Lexus GS 300 JZS161 appear here as the rest of the range publishes.