2007 BMW 328i Base 3.0L 6 Cyl N52. 2007 BMW 328i Base 3.0L 6 Cyl N51B30A. Directional or Non-Directional Brake Surface: Non-Directional. Position: Front. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle’s Year, Make, Model, Trim and Engine in the Compatibility Table.