XYZ Racing Hollow Rear Brake Kit — Bmw 3 SERIES E 90 320 (OE160) (2006-2011)

The E90 320’s rear axle leaves the factory with a modest disc and a caliper that has to double as the handbrake housing, so owners who upgrade the front end almost always end up with a back axle that can no longer keep pace with the new front bite. The XYZ Racing Hollow Rear Brake Kit for the Bmw 3 Series E 90 320 (OE160) puts that balance back, handing the rear the thermal headroom it needs to stay involved when you lean on the car.

Built around a two-piece floating disc to cut rotating mass, this rear big brake kit is supplied as a left-and-right pair and suits the fast-road and track-day E90 owner who wants the rear to keep contributing through repeated stops instead of cooking and handing all the work to the fronts. Three pad compounds set the kit’s character, from a quiet road setup to a circuit pad that survives a full session.

What this brake kit does for your 2006-2011 Bmw 3 Series E 90 320 (OE160)

On a 320 the nose is lighter than its six-cylinder siblings, which means the rear axle has more to give once it can shed heat properly, and that is exactly where this kit pays off. The hollow-vane rotor lowers rotating and unsprung mass at the back, so the rear feels quicker to respond and less prone to heat soak on a downhill braking zone. With the rear holding its bite, trail-braking into a tightening corner becomes more predictable and the car rotates on the brakes rather than running wide. Choosing the Racing compound gives you a firmer, more consistent pedal under sustained track abuse; the Street pad keeps things civil and dust-light for daily use, with Sport in between for hard road and the odd track lap. The result is a rear end that works with the front upgrade instead of fading behind it.

About the Hollow Rear Brake Kit

The Hollow rear brake kit is named for the hollow-vane rotor on its two-piece floating disc, where material is removed to reduce rotating mass while preserving the swept area that does the actual stopping. Less mass spinning at the hub means faster heat shedding and a smaller penalty on the E90’s already modest unsprung weight. The kit is offered with three pad compounds, Street for quiet, low-dust road behaviour, Sport for a sharper road bite, and Racing for high-temperature track stability. Disc faces can be drilled or slotted at the same price. Caliper finishes cover Red, Yellow, Gold, Black and Anodized Black at no extra cost, with a Custom Color in any Pantone and premium polished-forged or candy finishes, so the hardware can be matched to the car rather than hidden behind it, and a Hollow Racing caliper upgrade is on hand for serious circuit work. It is engineered as a balanced rear partner to a front upgrade on the E90, restoring proportion to a braking system that the factory deliberately kept conservative at the back.

Fitment for the Bmw 3 Series E 90 320 (OE160)

This kit is specified for the Bmw 3 Series E 90 320 (OE160) across the 2006 to 2011 build span, fitting the rear axle of the saloon as a left-and-right pair. It is a position-specific rear application, sold with your choice of Street, Sport or Racing pad compound and a caliper colour. Confirm your chassis code and build year against the listing before ordering.

What buyers also search for

• E90 320 rear brake upgrade to balance a front big brake kit
• Bmw 3 Series E 90 320 (OE160) rear brake kit for track-day heat management
• E90 320 lightweight hollow rear disc to cut rotating mass
• Rear big brake kit for the 2006-2011 Bmw 3 Series with road and racing pad choices
• E90 rear caliper colour options: Red, Yellow, Gold, Black or Anodized Black

Pick your pad compound and caliper finish and configure your rear kit using the options above.