Pro Mod style Direct-port system for carbureted four cylinder engine. System Includes: Lightning nitrous (Part # 15200L) and fuel (Part # 15201L) solenoid capable of up to 300HP Four Piranha nozzles Fuel pump Relay Microswitch Arming switch Jetting for 100, 150, 200, and 250HP. 2.5Lb NX Nitrous bottle and stainless steel mounting brackets.