Big Brake Kit
XYZ Racing Hollow Front Brake Kit — Bmw X5 E53 (1999-2006)
SKU: XYZ-BRK-BKF-BM-066-FRONT
- IncludesFront axle pair (2 discs + 2 calipers)
- PositionFront
- Disc Ø356–444 mm
- Caliper pots6 / 8 / 12-pot
- Lead time10–15 working days
Fits Bmw X5 E53 (1999-2006)
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Caliper render for this kit:
The E53 X5 is deceptively capable. BMW’s car-derived platform, independent suspension all round and a lower centre of gravity than any truck-based rival of its era, encouraged drivers to exploit that capability in ways the factory front brakes had not necessarily anticipated. At a kerb weight north of 2,100 kilograms, the front axle absorbs the majority of the car’s stopping load, and under sustained hard use that translates into heat accumulation that compounds with every successive braking event. XYZ Racing’s Hollow front brake kit is built around that thermal reality.
It is a single-axle kit, a matched pair of front calipers and two-piece floating front discs for the left and right corners. Three pad compounds, Street, Sport and Racing, let the hardware serve the full range of how E53s are actually used today, and a wide caliper colour range lets the visible end of the system match the build.
What this brake kit does for your 1999-2006 Bmw X5 E53
The hollow-vane disc manages heat differently to the OEM units, which matters when you are asking a 2,100-kilogram front-engined platform to stop repeatedly from speed, and the two-piece floating construction lets the disc expand without distorting to hold the pad in flat contact. Reduced rotating and unsprung mass at the front axle also improves wheel response, so the heavy E53 front end follows surface changes more accurately. Brake balance loads the front hardest under heavy deceleration, so consistent pedal feel across repeated hard stops is the practical outcome, the same bite on a long Alpine descent as on the first application of the day. The three compounds let the system be configured to actual use without a caliper swap: Street for a briskly-driven daily with low dust, Sport for owners who push the V8 variants on fast roads or cross-Channel runs, and Racing for those taking a modified E53 to a track day. Included painted caliper colours are Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone available, contributing to the wider build through the E53’s factory alloys without requiring any structural modification.
About the Hollow Front Brake Kit
The XYZ Racing Hollow front brake kit is the front-axle upgrade for the BMW X5 E53, with a hollow-vane disc centred on heat dissipation and reduced rotating mass relative to the standard items, paired with a two-piece floating construction. The caliper body is hollow-cast as standard for stiffness without the weight, and a Hollow Racing caliper, with no dust cover, a 1000C rating and a two-year warranty, is available for serious track use. Three pad compounds are chosen when you order, Street, Sport and Racing, so the friction characteristic matches the car’s actual use rather than defaulting to a fixed spec. Included painted caliper colours are Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone for £150 and premium polished-forged Titanium, Polished Gold and Polished Silver plus candy Teal, Blue, Red and Orange. Discs come drilled or slotted at the same price, and centre bells can be two-tone anodized in five colours or titanium. As a front-only kit it concentrates its effect on the axle that does the heavy lifting during deceleration; the improvement in sustained braking is most apparent under the conditions, gradient, load or repeated high-speed stops, where the E53’s OEM front discs are typically first to show strain.
Fitment for the Bmw X5 E53 (1999-2006)
This kit covers the full E53 X5 production run from the 1999 model year through to end of manufacture in 2006. It is a front-axle-specific fitment; verify your chassis generation before ordering, as the E53 was succeeded by the E70 from late 2006, which uses different brake dimensions.
What buyers also search for
- BMW X5 E53 front brake upgrade with pad compound options for daily use and performance driving
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- E53 X5 front big brake kit covering the full production run including V8 variants
- BMW X5 E53 aftermarket brake upgrade with Racing compound option for track-day use
Set your pad compound, disc style and caliper colour from the options above when you order.
What’s in the kit
Front axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 356–444 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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