StopTech Sport Drilled & Slotted Brake Rotor — F30 340i Rear Right

The rotor's cross-drilled holes and machined slots work in tandem to pull heat, gas, and brake dust away from the pad surface during hard stops. The practical result is sharper initial bite, reduced risk of pad glazing, and more consistent pedal feel whether you're hustling through wet mountain roads or putting in laps at a track day. It's a particularly effective pairing with the higher-friction European-style brake pad compounds already common on 340i builds.

Material quality is where StopTech separates itself from generic aftermarket options. The high-carbon metallurgy used here damps vibration more effectively than standard iron rotors, which directly translates to quieter operation — a noticeable benefit when running aggressive pad compounds that can amplify rotor resonance. The same metallurgy also improves crack resistance under the thermal cycling that repeated hard braking creates, giving you greater long-term durability than budget alternatives.

Finishing the package is a black e-coat applied to all non-friction surfaces, protecting the rotor from corrosion before and after installation. Behind the open-spoke wheels common on the 340i, it looks purposeful from day one. Sold factory sealed, this is a straightforward, confidence-inspiring upgrade for any F30 340i owner looking to improve rear braking performance without overcomplicating the build.