The Pro Street Diesel Nitrous System is engineered specifically to take advantage of the increased fuel delivery, oversized injectors and high boost capability of today’s high performance EFI diesel engines. This kit features a huge nitrous solenoid & large -4AN nozzle feed line. This high-flow hardware lets you select jets that will add from 50-300 additional horsepower. To properly time and control the nitrous injection, a boost pressure switch is also used in tandem with the electronic wide open throttle switch.