
XYZ Racing Hollow Rear Brake Kit — Bmw 3 SERIES E 90 330 (OE185) (2006-2011)
SKU: XYZ-BRK-BKR-BM-43-A-REAR
- IncludesRear axle pair (2 discs + 2 calipers)
- PositionRear
- Disc Ø330–421 mm
- Caliper pots6 / 8-pot
- Lead time10–15 working days
Fits Bmw 3 SERIES E 90 330 (OE185) (2006-2011)
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Caliper render for this kit:

On a hard-driven E90 330 it is rarely the front axle that runs out of ideas first. The straight-six sits over the nose, weight pitches forward under braking, and the standard rear discs heat-soak and start to drift the balance long before you want them to. The XYZ Racing Hollow Rear Brake Kit for the BMW 3 Series E90 330 (2006-2011) replaces the OE185-reference rear brakes with a larger, lighter two-piece floating disc setup that holds temperature and keeps the back of the car talking to you through a corner.
This is the rear half of a proper balance change, not a cosmetic one. Supplied as a left-and-right pair and offered with Street, Sport and Racing pad compounds, the kit lets you set the rear bite to match how the car is actually used, from fast-road duties to back-to-back circuit sessions.
What this rear brake kit does for your 2006-2011 BMW 3 Series E90 330
The bigger rear rotors give the E90 more thermal headroom exactly where the standard setup struggles, so brake balance stays consistent deep into a session instead of marching forward as the rears cook. The two-piece floating disc and its hollow-vane rotor trim rotating and unsprung mass at the rear axle, which helps the multilink suspension settle and recover between inputs. Stable rear temperatures also keep the DSC and ABS working from predictable data rather than fading hardware, so the car responds the same way on lap one and lap twenty. Pick the Racing compound for long braking zones, the Sport pad for harder road and the odd track lap, the Street pad for quiet, low-dust daily refinement, and choose a caliper finish in Red, Yellow, Gold, Black, Anodized Black or a Custom Color to suit the build.
About the Hollow rear brake kit
The Hollow rear brake kit takes its name from the hollow-vane rotor on its two-piece floating disc, which sheds heat and reduces the rotating mass spinning at each rear hub. It is sized as a rear-axle upgrade against the OE185 reference for this 330 variant and supplied as a pair, so the larger discs and calipers work with the car’s existing rear geometry rather than against it. Three pad compounds are available, Street, Sport and Racing, covering everything from a refined road car to a rear axle that needs to survive repeated heavy stops. Disc faces can be drilled or slotted at the same price. Caliper finishes start with Red, Yellow, Gold, Black and Anodized Black at no extra cost, then extend to a Custom Color in any Pantone and premium polished-forged and candy options for owners matching a specific scheme, and a Hollow Racing caliper upgrade is on hand for committed track use. The focus throughout is rear braking consistency and balance on the E90 chassis, not headline numbers for their own sake.
Fitment for the BMW 3 Series E90 330 (2006-2011)
This kit is specified for the BMW 3 Series E90 330 (OE185), covering the 2006 to 2011 build window and mounting at the rear axle as a left-and-right pair. It is matched to the OE185 reference for this variant. Confirm your exact chassis and OE caliper reference before ordering.
What buyers also search for
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- 2006-2011 BMW 3 Series rear brake kit matched to OE185 fitment
Set your pad compound and caliper colour for the E90 330 and configure yours using the options above.
What’s in the kit
Rear axle kit — supplied as a complete bolt-on assembly.
- 2×Two-piece floating discs — 330–421 mm: you pick the exact diameter with the "Disc size" option
- 2×Lightweight aluminium centre bells
- 2×Forged aluminium calipers — 6 / 8-pot
- 2×High-stiffness mounting brackets
- 2×Braided stainless steel brake lines
- 4×High-performance brake pads (1 set)
- 1×Fitting hardware & tools pack
Parking brake: Retains your original (OE) handbrake.
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 330–356mm (rear). 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.

Other products that fit this vehicle
Front & rear brake kits, coilovers and more for this car
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More XYZ products for the Bmw 3 SERIES E 90 330 (OE185) appear here as the rest of the range publishes.