ZEX™ is at the forefront of nitrous technology with its innovative wet nitrous system. The ZEX™ system incorporates the most technically advanced performance features available, including the patented ZEX™ Active Fuel Control™. This innovative performance and safety feature automatically adjusts the nitrous fuel enrichment so your engine never runs too rich or too lean. In addition, the ZEX™ nitrous system features a patented electronic TPS switch for perfect system activation at wide-open throttle. All the kit’s primary components, like the solenoids, filters, and activation electronics, come factory pre-assembled inside an enclosure called the Nitrous.