Big Brake Kit
XYZ Racing Hollow Front Brake Kit — Bmw 3 SERIES E 90 320 (2006-2011)
SKU: XYZ-BRK-BKF-BM-052-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 90 320 (2006-2011)
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Caliper render for this kit:
The E90 320’s standard front brakes were specified to handle the modest demands of a 150bhp saloon in everyday driving, and they are adequate enough for that brief. Push into sustained fast-road or circuit use, however, and the combination of single-piston sliding calipers and conservatively sized discs reveals the ceiling. Brake feel goes wooden as temperatures build, and braking reference points shift from corner to corner rather than staying fixed.
The XYZ Racing front big brake kit replaces the E90 320’s front-axle braking assembly with hardware built to operate in the margins where the standard equipment begins to run out of answers. It is a single front-axle kit: a matched pair of calipers and two-piece floating discs.
What this brake kit does for your 2006-2011 BMW 3 Series E90 320
The E90 saloon in 320 specification is a more rewarding tool than its position in the range implies: lighter than the 330i, less nose-heavy than the higher-displacement variants, and willing to rotate under a trailing throttle in a way the sport suspension packages do not fully suppress. Exploiting that balance requires predictable, repeatable braking references, which the standard calipers cannot sustain under repeated hard application. The kit’s larger swept area reduces peak thermal loading at the front axle, and the hollow-vane disc accelerates heat shed between corners. The two-piece floating ring grows under heat without coning and trims rotating and unsprung mass, while braided lines firm the pedal. Three pad compounds, chosen when you order, let the setup scale from daily commuting to circuit sessions without a separate set of hardware for each use: Street is the quiet, low-dust default, Sport adds bite and heat range, and Racing is the dedicated track compound.
About the Hollow Front Brake Kit
The two-piece floating disc uses a hollow-vane architecture that reduces rotating mass compared with full-vane units while maintaining the structural rigidity needed to resist leverage forces under hard stops from motorway speeds. The caliper runs a hollow body as standard, keeping reciprocating weight low; for dedicated circuit work a Hollow Racing upgrade drops the dust cover, is rated to 1000C and carries a two-year warranty. Caliper colour is included in Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone for £150 where the included palette does not suit, and premium polished-forged and candy finishes plus two-tone or titanium centre bells are selectable at checkout. Pad compounds are offered across three tiers: Street for regular road use, Sport for spirited driving where brake temperatures climb under repeated application, and Racing for dedicated circuit work where the compound needs a higher, more consistent thermal window. Discs come drilled or slotted at the same price. The kit is designed to work with the E90’s front brake mounting geometry on the 320 variant’s hub carriers, fitting within the standard suspension envelope.
Fitment for the BMW 3 Series E90 320 (2006-2011)
This kit is confirmed for the BMW 3 Series E90 saloon in 320 specification, covering the full 2006 to 2011 production run. Both 320i petrol and 320d diesel variants fall within this chassis code and year span. If your car was optioned from new with BMW’s larger Sport brake package, confirm the base disc diameter before ordering, as this can affect caliper fitment at the front axle.
What buyers also search for
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- XYZ Racing front brake kit for BMW E90 320 saloon
Select your caliper colour, disc style and pad compound from the options above for this E90 320 fitment.
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 90 320 appear here as the rest of the range publishes.