XYZ Racing Hollow Rear Brake Kit — Bmw 3 SERIES E 90 323 (OE160) (2006-2011)

The E90 323i carries less weight over its front axle than the 330i and 335i it shares a multi-link rear end with, so under hard braking the back of the car does more of the work than most owners give it credit for. This XYZ Racing Hollow Rear Brake Kit for the Bmw 3 Series E 90 323 (OE160) targets that exact point, swapping the modest factory rear setup for larger two-piece floating discs and a fixed caliper that holds rear bias steady as the brakes heat soak.

On a 2006-2011 saloon that has long since stopped being a company car and become a fast-road and occasional track-day machine, the standard rear brakes are the first thing to cry off after a few committed stops. Supplied as a left-and-right pair, this kit upgrades the rear, not just the front, which is how you keep the E90’s balance honest when you start braking deep into a corner.

What this rear brake kit does for your 2006-2011 Bmw 3 Series E 90 323 (OE160)

The most immediate change is pedal consistency: a fixed caliper clamping a larger two-piece disc resists the fade that makes the standard 323 rear brakes go long and vague after repeated use. More thermal capacity at the rear axle keeps front-to-rear balance predictable, so the car stays settled rather than nose-diving and shedding rear grip when you brake hard into a turn. The three pad compound choices let you match the kit to how you actually drive the car: the Street compound for quiet, low-dust road use, the Sport pad for spirited road and light track work, and the Racing compound for sustained circuit sessions where bite and heat tolerance matter most. Behind the wheels, caliper colour options of Red, Yellow, Gold, Black or Anodized Black give the rear of the car a clear visual lift to match the function.

About the XYZ Racing Hollow rear brake kit

XYZ Racing’s Hollow line uses a two-piece floating disc with a hollow-vane rotor to cut rotating and unsprung mass while keeping a large swept area for heat management, which is the core trade-off any rear big brake kit has to get right. The fixed caliper replaces the sliding factory unit for a stiffer, more even clamp across the pad, translating into a firmer pedal and more linear modulation. The kit, supplied as a pair, is offered with three pad compounds, Street, Sport and Racing, so the same hardware can be specified for a daily-driven 323 or one that sees regular lapping. Disc faces can be drilled or slotted at the same price. Caliper finishes run across Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone and premium polished-forged or candy options, and a Hollow Racing caliper upgrade is available for serious track use. The design priority throughout is repeatable rear braking performance under load rather than a single hard stop, which is what separates a proper kit from oversized discs alone.

Fitment for the Bmw 3 Series E 90 323 (OE160) (2006-2011)

This kit is built specifically for the E90-chassis Bmw 3 Series 323 (OE160) saloon across the 2006 to 2011 production span, fitted to the rear axle as a left-and-right pair. Confirm your chassis code and build year against the OE160 designation before ordering, and choose your pad compound and caliper colour to suit the car’s intended use.

What buyers also search for

• Bmw 3 Series E90 323 rear big brake kit for road and track-day use
• E90 323 rear brake upgrade to balance a front big brake setup
• XYZ Racing hollow disc rear brakes with Racing pad compound option
• 2006-2011 Bmw 3 Series rear caliper upgrade in Red, Yellow, Gold, Black or Anodized Black
• E90 323 fade-resistant rear brakes for repeated hard stops

Pick your pad compound and caliper colour and configure your E90 323 rear kit using the options above.