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. Finally, a custom made kit for 1999-2004 Mustangs. With power settings adjustable from 75-175horsepower, this kit features custom engineered hoses, wires and billet fuel rail adapters for a perfectfit and easy install. Like all ZEX kits, th Includes Jet Pack # 82217JP 75-175 HP, a perfect power range for stock or fully built engines; Billet fuel rail adapter bolts right on, no drilling required for the kit?s fuel connections; Fuel jets have been tuned for the 40 psi fuel pressure found on these Mustangs Fitment: 1999 Ford Mustang GT 2000 Ford Mustang GT 2001 Ford Mustang GT 2001 Ford Mustang GT Bullitt 2002 Ford Mustang GT 2003 Ford Mustang GT 2004 Ford Mustang GT