This is a genuine M57 D1 injector nozzle, produced by Bosch. It can be used with the original Cp1 system to rejuvenate injectors or installed on newer Cp3 injector bodies.
Power capacity: approximately 290-310 HP when paired with Cp3 injector bodies. We suggest using 209, 212, 216, or 219 injector bodies, while 131 injector bodies are not recommended.
