Big Brake Kit
XYZ Racing Hollow Front Brake Kit — Bmw 3 SERIES E 91 323 (2006-2011)
SKU: XYZ-BRK-BKF-BM-057-FRONT
- IncludesFront axle pair (2 discs + 2 calipers)
- PositionFront
- Disc Ø330–444 mm
- Caliper pots6 / 8 / 12-pot
- Lead time10–15 working days
Fits Bmw 3 SERIES E 91 323 (2006-2011)
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Caliper render for this kit:
The E91 Touring adds genuine estate practicality to the 3 Series package, but it also adds weight, and the standard front brake hardware on a 323 reflects its position at the entry point of the E9x range rather than its potential as a fast-road car. The N52 2.5-litre is a smooth-revving unit, and owners who drive it hard find the standard discs and pads are the weakest link well before the engine or chassis runs out of talent.
The XYZ Racing front big brake kit for the BMW 3 Series E91 323 (2006-2011) replaces that hardware with two-piece floating discs and a configurable pad and caliper specification. It is a single-axle upgrade, a matched pair of front calipers and discs, fitted where the E91’s added mass makes itself felt most under braking.
What this brake kit does for your 2006-2011 Bmw 3 Series E 91 323
Larger-diameter discs increase the braking moment at the wheel and dissipate heat faster than the stock 323 setup, which is where an E91 Touring, particularly one carrying rear load, shows its weight under repeated hard stops. Hollow-vane disc internals draw airflow through the disc body during deceleration, keeping temperatures down and reducing the thermal soak that leads to a softening pedal on a back-road run or a track session. The two-piece construction floats the friction ring on an aluminium centre bell, so the disc expands cleanly under heat rather than warping.
Three pad compounds let you match friction material to how the car is actually used: Street for a Touring that mostly commutes and occasionally plays, kept quiet and low-dust; Sport for an owner who presses on regularly and wants more bite and heat range; Racing if this 323 is a genuine circuit tool. Caliper colour selection makes the upgrade visible through any open-spoke alloy.
About the XYZ Racing Hollow Front Brake Kit
The caliper is built on a hollow body as standard, an approach that improves thermal management and keeps mass low while air passes through the disc rather than relying solely on surface venting. The big brake designation means a larger disc diameter than the OE 323 fitment, increasing mechanical advantage at the caliper and extending the usable pad contact area. Discs come drilled or slotted at the same price, and the centre bell can be upgraded to two-tone in five anodized colours or titanium.
Compound choice is specified when you order: Street, Sport, or Racing, covering everything from everyday mixed use through to sustained track driving. Caliper colour comes painted at no extra cost in Red, Yellow, Gold, Black, or Anodized Black; Custom Color matches any Pantone for £150; and premium polished-forged (Titanium, Polished Gold, Polished Silver) or candy finishes (Candy Teal, Candy Blue, Candy Red, Candy Orange) are available for a show-grade result. A Hollow Racing caliper upgrade, run without a dust cover, rated to 1000C, and warranted for two years, suits serious track use, and braided lines firm up the pedal under heat. This is a front-axle fitment, concentrating the upgrade where weight transfer under braking demands it.
Fitment for the Bmw 3 Series E 91 323 (2006-2011)
This front big brake kit covers the BMW 3 Series E91 323 Touring across the full production run from 2006 to 2011. The E91 chassis code denotes the five-door estate body; owners running an E90 saloon, E92 coupe, or E93 convertible 323 variant should verify separately, as caliper mount dimensions and hub geometry can differ between body styles.
What buyers also search for
- BMW E91 323 Touring front brake upgrade for owners who push the car on fast roads and open circuits
- BMW 3 Series E91 big brake kit with hollow-vane discs and selectable pad compound
- BMW E91 323 front caliper colour options, red, black, gold, and custom finishes available
- BMW 3 Series E91 brake fade fix for 323 estate owners tackling trackdays or spirited moorland driving
Select pad compound, caliper colour, disc style, and centre bell 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 — 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 Bmw 3 SERIES E 91 323 appear here as the rest of the range publishes.