XYZ Racing Hollow Rear Brake Kit — Bmw 3 SERIES F 30 320I (OE161) (2012-2018)

The F30 320i carries its braking bias forward, but the rear axle does more work than most owners credit, especially under trail braking into a slow corner where the N20’s mass settles back and the standard single-piston floating caliper starts to feel its limits. The XYZ Racing rear brake kit for the BMW 3 Series F30 320i goes straight at that end of the car, swapping the soft factory rear setup for a pair of stiffer calipers and a pair of lighter, better-cooled two-piece floating discs.

This is a rear-specific upgrade for 2012-2018 cars, built either to balance a front big brake setup or simply to firm up a rear axle that turns vague after a handful of hard stops. The hollow-vane disc trims rotating and unsprung mass at the back, sharpening how quickly the rear responds to pedal input.

What this brake kit does for your 2012-2018 Bmw 3 Series F 30 320I (OE161)

Fit it and the first thing you notice is a firmer, more progressive rear pedal, with the bite point holding steady instead of going long as the original caliper heats up. The lightweight disc sheds heat faster, so repeated stops from speed stop cooking the rear pads into a glaze. Three pad compounds let you match the car to its use: Street for quiet, low-dust everyday driving, Sport for spirited fast-road work, and Racing for circuit days when rear brake temperatures climb hardest. Because the kit cuts mass at the rear axle, the 320i settles more predictably on turn-in and stays composed where the stock rear tends to wash out. Painted caliper finishes, from Red and Yellow through to Black, mean the upgrade reads behind the wheels as well as it works.

About the rear brake kit

The two-piece floating disc removes material from the rotor’s internal vane structure to lower rotating and unsprung mass without surrendering thermal capacity, and the friction ring floats on its alloy bell to stay flat under heat where a fixed solid rotor would distort. The disc face is available drilled or slotted at the same price. Paired with a fixed performance caliper, it firms up the pedal and resists the fade that floating single-piston rears suffer once worked hard. The kit is offered in three pad compounds, Street, Sport and Racing, so the same hardware suits a daily-driven 320i or a car that sees regular track time. Caliper bodies are finished in painted Red, Yellow, Gold, Black or Anodized Black at no extra cost, with premium polished-forged, candy and Custom Pantone options to match your build, and the caliper is hollow-cast as standard with a Hollow Racing upgrade for serious track use. It is a rear-axle kit, designed to complement a front big brake setup or to correct a factory balance that leaves the rear underworked, with construction that prioritises heat management and consistent clamping force over outright initial bite.

Fitment for the Bmw 3 Series F 30 320I (OE161) (2012-2018)

This kit is cut for the F30-chassis 320i, OE161 reference, covering build years 2012 to 2018. It is a rear-position fitment only. Confirm your exact chassis code and build year against the listing before configuring, as the F30 range shared brake hardware across several variants.

What buyers also search for

• BMW 3 Series F30 320i rear brake upgrade for road and track use
• F30 320i lightweight disc kit that holds up against rear brake fade on repeat stops
• Bmw 3 Series rear big brake kit with Street, Sport and Racing pad options
• F30 320i caliper colour choices, from Red and Gold through to Black
• F30 320i two-piece floating rear discs to cut rotating mass

Pick your pad compound, disc style and caliper colour from the options above when you order your F30 320i rear kit.