Adapter Plate System 112mm with 12Lb Carbon Bottle for GM Vehicles Nitrous Express NX 20917-12 - USA-NX-20917-12 - Adapter Plate System 112mm for GM Vehicles If you have upgraded your throttle body to a 112 mm and are looking to add nitrous to your vehicle, nitrous express now has a bolt on solution without the need for additional adapters or spacers. The 112mm adapter plate system uses 2 separate bolt patterns, one for the intake and separate one for the throttle body.  This plate takes the popular 4 bolt LS throttle body bolt pattern and adapts the flange to accept a 112mm throttle body. The Nitrous Express 112mm Adapter Plate System features a billet plate. The system comes as a single stage wet nitrous system and includes jetting for 100-400 horsepower. This system includes Pro Power Lightning series solenoids, 6AN feedline, braided stainless lines to connect the solenoids to the plate, stainless bottle brackets, master arming switch, WOT switch as well as every nut, bolt and electrical connector needed to complete the installation. NX Lightning solenoids feature CNC aluminum bodies topped with Carbon Fiber cans for the ultimate in weight savings. The solenoid bases offer an improved flow path that eliminates sharp turns and expansion areas in the nitrous flow path. Keeping the nitrous in dense liquid form, making more power while utilizing less nitrous. These solenoids also feature an integrated purge port which allows you to connect a purge valve directly to the body of the nitrous solenoid, purging nitrous all the way through the solenoid to ensure no air is left in the line, and also makes for clean installs with less plumbing. 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, 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 old style brass valves. 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!