The ZEX Classic Purple Nitrous System is iconic ZEX. Onlookerswill recognize the infamous purple bottle as yourace past the competition. This Classic Purple System issure to draw attention and have the crowd talking. ZEX has developed an innovative wet nitrous system designed specifically for any dual throttle bodyEFI engine. Two nozzles, dual feed lines, all required hoses, wires and fittings have been engineeredand manufactured for a perfect fit on an Designed specifically for dual throttle body equipped engines; Adjustable from 75-175 HP; perfect for mild to wild performance ZEX electronics use the vehicle?s TPS sensor toactivate the nitrous system at wide open throttle; fully compatible with throttle-by-wire engines; ZEX Active Fuel Control adjusts fuel enrichment; with variations in bottle pressure; you?renever too rich or too lean