2 Valve Plate System With 10Lb Composite Bottle for Ford Mustang 4.6L (50-150Hp) Nitrous Express NX 20946-12 - USA-NX-20946-12 - 2 Valve Plate System With 10Lb Composite Bottle for Ford Mustang 4.6L (50-150Hp) 200Hp-300Hp Jetting Available Is your 4.6 liter 2 valve motor a little light on torque and horsepower? NX has the solution to your problem! The Nitrous Express 4.6L 2-Valve Plate System feature's Phase 3 Spraybarless technology for the ultimate in atomization and distribution. The billet plate bolts between the throttle body elbow and the intake making installation quick and easy. This system includes Lightning series nitrous and fuel solenoids. Also included 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. To make installation even easier, ford fuel rail adapter fitting is included so there is no need to splice into the factory fuel lines. The system includes jetting from 35 to 150 horsepower and can be upgraded to 300 horsepower with additional jets. Includes 10lb bottle, braided stainless lines, stainless bottle brackets, arming switch, as well as every nut, bolt and electrical connector needed to complete the installation. Fits 1996-2004 GT mustangs and other 2 Valve 4.6L Fords. Note: some 03-04 models may not have a schrader valve on the fuel rail. For these applications you will also need to purchase fuel rail adapter, part 16183. If you have an aftermarket engine management system that is capable of adding nitrous enrichment fuel and want this system DRY (no fuel components), please contact us THE NITRO BOTTLE IS EMPTY! Instructions PDF