Brembo 06-12 325i (Excl. xDrive) Rear GT BBK 4 Piston Cast 345x28 2pc Rotor Drilled-Black

Brembo is well-known for making high-performance braking components, and this Rear GT Big Brake Kit (BBK) is a prime example of their expertise. If you're looking to significantly upgrade the stopping power and feel of your 2006-2012 BMW 325i (excluding xDrive models), this kit is designed to do just that. It replaces your factory rear brake setup with a more robust system that can handle increased demands, whether you're driving spiritedly or on the track.

This kit features a pair of four-piston calipers, which offer more clamping force than typical two-piston factory calipers. These calipers are paired with two-piece, 345x28mm rotors that are drilled for improved heat dissipation. The drilled pattern helps to vent gases and water away from the pad surface, maintaining consistent braking performance even under heavy use. The cast iron construction of the calipers is strong and durable, built to withstand the rigors of performance driving. The two-piece rotor design allows for better thermal management and can make replacement easier down the line.

When installing a big brake kit like this, you're not just upgrading the look of your wheels; you're fundamentally changing how your car brakes. Expect a firmer pedal feel and more confident deceleration, especially during repeated hard stops. This kit is a substantial upgrade for the rear of your 325i, complementing any front brake modifications you might have or plan to do.