BMW 50d 3400bar Rail Pressure Sensor upgrade used in highly tuned M57, N57 and various other applications.
 
These are genuine items direct from Bosch and not to be confused to other cheaper and unreliable options.
 
BMW OEM - 13538589933
 
PLEASE NOTE THAT STARTING THE ENGINE AFTER INSTALL WITHOUT CORRECT CALIBRATION CAN RESULT IN DAMAGE!
 
MODIFICATIONS MAY BE NEEDED ON M57 APPLICATIONS AND WE HIGHLY RECOMMEND THESE ARE COMPLETED BY A PROFESSIONAL!