The ZEX™ Race Diesel Nitrous System is a two stage system that offers 50-600 additional horsepower, along with cooler air and exhaust temperatures. • 50-600 additional horsepower • Designed as a two stage system to help you maintain traction • Uses the TPS sensor to activate the nitrous for the ultimate in safe engagement • Incorporates a boost switch for timing the nitrous; maximum nitrous power while under boost. PLEASE CALL TO ORDER!! 1-800-716-9635