XYZ Racing Hollow Rear Brake Kit — Bmw 4 SERIES F 32 (OE185) (2013-2020)

The F32 4 Series was specified to cover a fast B-road and still behave on the commute, but its rear braking hardware was chosen for that road brief, not for repeat heavy stops on a circuit. The XYZ Racing Hollow Rear Brake Kit goes straight at the rear axle of the 4 Series F 32 (OE185), adding thermal headroom and a firmer pedal exactly where the standard rear discs and calipers start to feel vague after a few hard laps.

Rear brakes on a coupe like this do quiet but important work. They set the car’s brake balance front and rear and steady the chassis as you trail off the pedal into a corner. Fit a larger front kit alone and the F32 can feel unbalanced under load; matching the rear with this kit, a pair of left and right rear calipers and matched discs, keeps the car settled rather than nervous when you brake deep and turn in.

What this brake kit does for your 2013-2020 Bmw 4 SERIES F 32 (OE185)

After fitting, the first thing you notice is pedal consistency: the rear axle holds its bite through a session instead of going long as heat builds. The three pad compounds let you set the car up for how you actually drive it, a Street compound for quiet, low-dust road use, the Sport compound for spirited weekend runs with occasional track use, and the Racing compound when the 4 Series sees real track time and needs stable friction at temperature. Caliper colour is yours to choose from the included painted finishes, Red, Yellow, Gold, Black and Anodized Black at no cost, with a Custom Color in any Pantone available, so the upgrade reads as deliberate behind an open wheel rather than an afterthought.

About the Hollow rear brake kit

The Hollow rear brake kit takes its name from its lightweight two-piece floating disc design, which trims rotating and unsprung mass at the rear of the car, mass the F32’s dampers and rear bushings then have less work to control. Less rotating weight at each rear corner sharpens how quickly the brakes shed and recover heat, and reduces the inertia the calipers have to clamp against. The kit ships with a choice of three pad compounds, from a road-friendly Street material through a Sport compound to a full Racing compound, so the same hardware suits a daily 420i or a track-focused 435i. The caliper body is hollow as standard, with a Hollow Racing upgrade for serious track use, no dust cover, rated to 1000C and carrying a two-year warranty. Caliper finishes span the included painted colours plus a Custom Color, with drilled or slotted discs at the same price and centre-bell upgrades selectable at checkout. It is built as a balanced rear complement to a front upgrade, restoring the brake bias a heavier front kit would otherwise skew.

Fitment for the Bmw 4 SERIES F 32 (OE185) (2013-2020)

This kit is the rear-position fitment for the BMW 4 Series F 32 (OE185) coupe across the 2013 to 2020 model years. It mounts to the rear axle and is designed around that chassis’ OE185 reference, so it slots in as a direct rear upgrade. Confirm your exact model year and trim before ordering.

What buyers also search for

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Choose your pad compound and caliper colour from the options above to build your F32 rear brake kit.