
XYZ Racing Hollow Rear Brake Kit — Bmw 3 SERIES E 92 325 (OE160) (2007-2011)
SKU: XYZ-BRK-BKR-BM-050-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 92 325 (OE160) (2007-2011)
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Caliper render for this kit:

The E92 coupe carries its mass high over a rear axle that gets busy the moment you trail the brakes into a corner, and the standard 325 rear discs were specified for a relaxed N52 commuter rather than repeated heavy stops. This XYZ Racing rear brake kit for the BMW 3 Series E92 325 (2007-2011) rebuilds the back of the car’s braking system around greater thermal capacity and a pair of fixed calipers you can re-pad and rebuild instead of replacing.
The two-piece floating discs shed rotating mass at the rear corners, which the 325’s modest six appreciates on the way out of a corner and the chassis appreciates as reduced unsprung weight. Balanced against a matching front kit, the kit gives a coupe that stays settled under braking rather than wandering as the original rears go soft.
What this brake kit does for your 2007-2011 BMW 3 Series E92 325
The change you feel first is consistency on the second and third hard stop, exactly where the OE 325 rears tend to go long. The larger rear discs and multi-piston calipers hold pedal feel through a hot session, so the car rotates predictably on the brakes instead of locking or fading at the rear. The hollow-vane rotor trims unsprung and rotating mass, sharpening turn-in and helping the rear damper keep the tyre planted over kerbs and patchy surfaces. Pick the Racing compound for sustained circuit heat, the Sport compound for fast-road bite from cold, or the Street compound for a quiet, low-dust daily car. Painted caliper finishes, including red, yellow and gold, sit well behind an open wheel.
About the rear brake kit
The kit pairs a hollow-vane two-piece floating rotor with a fixed multi-piston caliper sized for the E92 rear axle. The hollow casting drops weight without giving up the thermal mass needed to absorb repeated stops, a sensible trade for an axle that takes a smaller share of the braking load yet suffers badly when its small factory discs overheat. The floating ring expands on its alloy bell to stay flat under heat, and the disc face is available drilled or slotted at the same price. Three pad compounds are offered: Street for quiet road use, Sport for harder fast-road and occasional track work, and Racing for full circuit temperatures. The fixed caliper resists pad knock-back and delivers a firmer pedal than the sliding OE arrangement, and it is hollow-cast as standard with a Hollow Racing upgrade for serious track use. Calipers are finished in painted Red, Yellow, Gold, Black or Anodized Black at no extra cost, with premium polished-forged, candy and Custom Pantone options. This is a rear-specific kit, meant to be paired with a matching front setup rather than run on its own.
Fitment for the BMW 3 Series E92 325 (2007-2011)
This kit is specified for the BMW 3 Series E92 325 coupe, OE160 reference, built between 2007 and 2011, and fits the rear axle only. It is matched to that chassis’s hub and caliper-mounting geometry. Confirm your exact build year and OE disc reference against the listing before configuring, as E9x rear brake specifications vary across the range.
What buyers also search for
- BMW 3 Series E92 325 rear brake upgrade for fast road and track days
- E92 325 lightweight disc rear kit to cure overheating standard rear discs
- BMW E92 coupe rear caliper colour options including red, gold and custom
- 325 E92 Racing, Sport and Street pad compounds for the rear axle
- 2007-2011 BMW 3 Series rear big brake kit matched to a front setup
Pick your pad compound, disc style and caliper colour from the options above when you order your rear kit.
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 92 325 (OE160) appear here as the rest of the range publishes.