High performance brake kits for road and track use Patented StopTech Aerorotors brake discs for optimized airflow Patented bell made of solid aluminum for increased air flow Ultra-high stiffness StopTech calipers with patented adapters to simplify installation Steel-braided StopTech brake lines for better feel of the brake pedal. All accessories necessary for installation. Components made in the USA. Full ISO / TS 16949: 2009 certification. Application list: BMW 328xi (E90) 07-09 (USDM) BMW 328xi (E91) 07-09 (USDM ) BMW 328xi (E92) 07-09 (USDM) Disc type: two-piece Fitting side: front High performance braking sets for road and track use.Patented StopTech Aerorotors brake discs for optimized airflow.Patented bell, made of solid aluminum, increasing airflow.StopTech calipers with ultra-high stiffness with patented adapters simplifying assembly.Brake hoses in Steel StopTech for better feel of the brake pedal.All installation accessories for assembly.Components manufactured in the USA.Full ISO / TS 16949: 2009. certification.Application list: BMW 328xi (E90) 07-09 (USDM) BMW 328xi (E91) 07-09 (USDM) BMW 328xi (E92) 07-09 (USDM) Disc type: two-pieceFitting Position: front