Shop OEM BMW Part # 34336865472 (34-33-6-865-472). Power Brake Booster. I8. Brake Power Booster Unit - Repair or Replace If you have a brake pedal that is suddenly stiff or you hear a

Brake. Booster. Power.
Power Brake Booster.

Power Brake Booster

Fits i8

I8.
Brake Power Booster Unit - Repair or Replace
If you have a brake pedal that is suddenly stiff or you hear a whistling noise when you step on your brakes—especially when you're stopped—the culprit may be a failed brake booster. Our technicians can easily diagnose a possible brake booster failure in your .