LS 90mm Plate System with 10Lb Bottle for GM Vehicles Nitrous Express NX 20934-10 - USA-NX-20934-10 - LS 90mm Plate System for GM Vehicles The Nitrous Express LS 90mm Plate System features a billet plate. This 90mm plate bolts between the throttle body and intake, making installation quick, easy, and attractive. The system comes as a single-stage system and includes jetting for 50, 100, 150, 200, 250, 300, 350, and 400 horsepower. (Fits 90 and 92mm Throttle Bodies)The plate is pre-machined with a second set of nitrous and fuel passages, so you can easily upgrade to a dual-stage system by adding part # NX933D. This system includes Pro Power Lightning series solenoids. Systems with a bottle include the Lightning 500 bottle valve, 6AN feedline, braided stainless solenoid to plate lines, stainless bottle brackets, master arming switch, WOT switch, as well as every nut, bolt, and electrical connector needed to complete the installation. This system includes the latest technology and the best components available. NX Lightning solenoids feature an improved flow path that eliminates sharp turns and expansion areas in the nitrous flow path. This keeps the nitrous in dense liquid form which makes more power utilizing less nitrous. Lightning nitrous solenoids feature an integrated purge port, which allows you to connect a purge valve directly to the body of the nitrous solenoid for clean looks and less plumbing. Lightning Series solenoids feature CNC aluminum bodies topped with Carbon Fiber cans for the ultimate in weight savings. Systems with a bottle include the billet aluminum Lightning 500 bottle valve. This valve not only looks great; It is packed with features including two integrated gauge ports, a 5/8 siphon tube, a large .500 orifice, and an improved flow path with only one 45-degree turn. The Lightning bottle valve looks great, flows great, and weighs nearly one full pound less than our old-style brass valve. 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