XYZ Racing Hollow Rear Brake Kit — Bmw 3 SERIES F 30 328I (OE185) (2012-2018)

Lean hard into a quick corner in an F30 328i and the rear axle quietly does more work than most owners credit it for. The sixth-generation 3 Series carries real mass for a compact saloon, and the N20 turbo four gives it the torque to keep loading the rear discs through fast, flowing sections. The XYZ Racing rear brake kit for the Bmw 3 Series F 30 328i (OE185) is the upgrade for that rear end: more thermal headroom and a firmer, more consistent pedal once the factory rears start to fade.

This is a rear-axle big brake kit, a pair of rear calipers and a pair of two-piece floating discs sized to the OE185 fitment, built to hold its bite through repeat heavy stops rather than just look the part behind the wheel. Pad compound is your call: Street for quiet, low-dust road use, Sport for fast-road bite, or Racing for circuit days.

What this brake kit does for your 2012-2018 Bmw 3 SERIES F 30 328I (OE185)

After fitting, the change you feel first is stability under trail braking: the rear stays planted as you bleed off speed into a corner, instead of going light and nervous. The two-piece floating disc trims rotating and unsprung mass at the rear, which sharpens turn-in and lets the suspension settle faster over mid-corner bumps. Step up to the Racing pad compound and the rear copes with back-to-back hard stops without the spongy, long pedal the OE setup gives once heat soaks in. For a fast-road 328i, the Sport compound keeps cold bite sensible for daily driving while still standing up to a spirited B-road blast, and the Street pad keeps things quietest of all for the commute.

About the rear brake kit

The kit pairs a lightweight two-piece floating disc with a matched caliper sized to the F30’s rear OE185 dimensions, so the gains come from reduced mass and greater swept-area heat capacity rather than brute diameter alone. The friction ring floats on its alloy bell to stay flat under heat where a fixed solid rotor would warp, and the disc face is available drilled or slotted at the same price. Three pad compounds are offered, Street, Sport and Racing, letting you tune rear bite and temperature range to how the car is actually used. Calipers come in painted Red, Yellow, Gold, Black and Anodized Black at no extra cost, with premium polished-forged, candy and Custom Pantone finishes to match your build, and the caliper is hollow-cast as standard with a Hollow Racing upgrade for serious track use. Everything is specified to bolt to the rear axle as a complete kit, keeping brake balance sensible front-to-rear once installed.

Fitment for the Bmw 3 SERIES F 30 328I (OE185) (2012-2018)

This kit is mapped to the F30-chassis 328i with the OE185 rear brake specification, covering the 2012 to 2018 production span. Confirm your car carries the OE185 rear fitment before ordering, then choose your pad compound, disc style and caliper colour.

What buyers also search for

• Bmw 3 Series F30 328i rear big brake kit for track days and fast road
• F30 328i lightweight two-piece rear discs to cut unsprung mass
• Bmw 3 Series rear brake upgrade with Sport or Racing pad options
• F30 328i OE185 rear caliper kit in Red, Yellow, Gold and Black finishes
• 328i rear brake kit that resists fade under repeat heavy stops

Pick your pad compound, disc style and caliper colour from the options above when you order your kit.