Nitrous Express Dodge TBI (Throttle Body Injection) Plate System (Magnum Engine), Less Bottle is what you need to be on top. Is your Magnum motor a little light on torque and horsepower? The ate System for Magnum engines feature Phase 3 Spraybarless technology for the ultimate in atomization and distribution. The billet plate bolts between the throttle body and the intake making installation quick and easy. This system includes Lightning series nitrous and fuel solenoids. Also includes is a wide open throttle switch so the nitrous only activates at wide open throttle and automatically turns off when you let your foot off the accelerator. The system includes jetting from 35 to 150 horsepower and can be upgraded to 250 horsepower with additional jets. Includes braided stainless lines, stainless bottle brackets, four color installation manual, arming switch as well as every nut, bolt and electrical connector needed to complete the installation. Fits 3.9L, 5.2L and 5.9L Dodge Magnum engines.