"Nitrous Express introduces the NXL nozzle with Integrated Rail Technology. This plug-and-play, direct-port nozzle system is designed for B16 and GSR engines. There is no drilling required, no engine disassembly and no solenoids to mount. The entire nitrous system is self-contained in the high-flow fuel rail. Systems come complete with bottle, jetting, custom insulated distribution lines, and all installation hardware. This hi-tech direct port system comes with a wiring harness for true plug-and-play performance. "