Big Brake Kit
XYZ Racing Hollow Front Brake Kit — Opel ASTRA H GTC (2004-2009)
SKU: XYZ-BRK-BKF-OP-01-A-FRONT
- IncludesFront axle pair (2 discs + 2 calipers)
- PositionFront
- Disc Ø330–444 mm
- Caliper pots6 / 8 / 12-pot
- Lead time10–15 working days
Fits Opel ASTRA H GTC (2004-2009)
Added to basket ✓
Caliper render for this kit:
The Astra H GTC’s front-wheel-drive architecture places virtually the entire deceleration load at the leading axle. Under sustained circuit work the front discs handle every hard stop unassisted by the rear, a dynamic the VXR variant acknowledged with Brembo hardware from the factory but which leaves non-VXR GTC trims exposed under repeated fast laps.
This XYZ Racing front brake kit for the Opel Astra H GTC bridges that gap across the 2004-2009 build span, supplying a matched pair of front discs and calipers. Three pad compounds give a single kit the flexibility to serve different use cases, from daily commuting to circuit sessions, with the compound choice as the variable rather than the hardware.
What this brake kit does for your 2004-2009 Opel ASTRA H GTC
On a front-wheel-drive platform like the Astra H GTC, the front brakes manage both longitudinal deceleration and the load that transfers forward when you trail-brake into a corner. The nose carries the combined weight of engine and gearbox, and on a circuit the front axle works harder than anything the original specification envisaged for a non-VXR trim. The three-compound pad selection addresses that range directly: Street is the quiet, low-dust default for everyday temperatures, Sport covers more aggressive fast-road conditions, and Racing is rated for the sustained heat generated in repeated circuit braking. The hollow-vane discs pull heat off the friction face to hold pedal consistency through a session.
Caliper colour options are visible through the open-spoke alloys most GTC owners specify. For a car already running suspension modifications, the caliper finish is part of how the build reads from the outside.
About the Hollow Front Brake Kit
This XYZ Racing front brake kit is a front-axle upgrade for road and track applications, supplied as a pair of front discs and calipers. Three pad compounds are offered when you order: Street for road temperatures, Sport for more demanding fast-road conditions, and Racing for circuit use where sustained heat is a factor. Compound choice at purchase determines the initial configuration; pads are a consumable item replaced independently thereafter. The calipers are hollow-body as standard, with an optional Hollow Racing upgrade for serious track use that removes the dust cover, is rated to 1000C, and carries a two-year warranty.
Caliper colour finishes cover Red, Yellow, Gold, Black, and Anodized Black at no extra cost, with a Custom Color option matching any Pantone for an additional fee and premium polished-forged and candy finishes available. Disc style is drilled or slotted at the same price, with two-tone anodized or titanium centre bells selectable at checkout. The kit covers the front axle, the highest-load brake position on any front-wheel-drive platform.
Fitment for the Opel ASTRA H GTC (2004-2009)
This kit is specified for the Opel Astra H GTC from model year 2004 through 2009. The GTC body style shared its front braking and suspension architecture with the Astra H platform family, and this kit addresses the front axle of that chassis across the full build span. Confirm your exact model year falls within the 2004-2009 range before ordering.
What buyers also search for
- Opel Astra H GTC front brake upgrade covering 2004 to 2009 model years
- Astra H GTC big brake kit with street, sport, and racing pad compound options
- XYZ Racing Hollow Front Brake Kit for the Opel Astra H GTC front axle
- Opel Astra H GTC 2004-2009 caliper finish in Red, Yellow, Gold, Black, or Anodized Black
- Astra H GTC front brake upgrade for circuit and fast-road driving
Choose your pad compound, disc style, and caliper colour from the options above, then build yours to complete the spec.
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.
Same car
Other products that fit this vehicle
Front & rear brake kits, coilovers and more for this car
