XYZ Racing Hollow Rear Brake Kit — Bmw 4 SERIES F 32 (OE161) (2013-2020)

The F32 4 Series carries most of its braking load onto the front axle, which is exactly why the rears get neglected and then cook first on a track day. Repeated heavy stops glaze the standard rear pads, the discs heat-soak, and the DSC starts trimming corner-exit drive because it can no longer trust what the back of the car is doing. The XYZ Racing Hollow Rear Brake Kit for the BMW 4 Series F 32 (OE161) tackles that head-on with a lighter two-piece floating disc and a stiffer caliper that bring back consistent rear bite.

This is a rear big brake kit, a pair of left and right rear calipers designed to balance a front upgrade rather than carry the car on its own. You match it to how you drive with three pad compounds, Street, Sport and Racing, and finish the calipers in the included painted colours to suit the build.

What this brake kit does for your 2013-2020 BMW 4 Series F 32 (OE161)

Shedding rotating and unsprung mass at the rear axle is something the F32 feels as a back end that settles faster over mid-corner bumps and a car that rotates more willingly on the brakes. The kit’s caliper holds the pad square against the disc, so the pedal stays firm deep into a braking zone instead of going long as the fluid heats. Fit the Racing compound and the rear brakes hold up across a full session without fade; the Sport pad adds bite for fast-road work with the odd track day; the Street pad keeps strong cold bite, quiet manners and lower dust for daily use. The result is a 4 Series that brakes square, with brake balance front and rear that lets you trail the brake later into a corner without the rear stepping out of line.

About the Hollow Big Brake Kit

The kit is built around a two-piece floating disc, cast with internal voids that cut weight while keeping the swept area and thermal mass needed to absorb repeat stops. Running it on the rear axle restores brake balance front-to-rear once a bigger front setup has shifted the bias forward. The three-stage pad menu means one hardware kit covers a road car, a fast-road car and a track car: Street for stock feel and low dust, Sport for harder fast-road performance, and Racing for heat tolerance under sustained load. The caliper body is hollow as standard, with a Hollow Racing upgrade for serious track use, no dust cover, rated to 1000C and backed by a two-year warranty. The included painted caliper finishes are Red, Yellow, Gold, Black and Anodized Black at no cost, with a Custom Color in any Pantone available so the kit reads as deliberate behind the wheels rather than an afterthought. Discs come drilled or slotted at the same price, with centre-bell upgrades selectable at checkout. Everything is sized to the F32’s rear hub and disc geometry rather than adapted from a generic fitment.

Fitment for the BMW 4 Series F 32 (OE161)

This kit is cut for the F32-generation BMW 4 Series, referenced to the OE161 disc, across the full 2013 to 2020 production run. Confirm your chassis code reads F32 and check the rear disc reference matches OE161 before ordering. Pad compound and caliper colour are selected when you order.

What buyers also search for

• BMW 4 Series F32 rear brake upgrade for track days and fast-road use
• F32 OE161 rear big brake kit with Racing pad option for repeat-stop heat
• BMW 4 Series rear brake balance kit to pair with a front upgrade
• F32 4 Series caliper colour options in red, yellow, gold or custom
• 2013-2020 BMW 4 Series two-piece disc rear kit for lower unsprung weight

Choose your pad compound and caliper colour from the options above when you order.