NOS Pro Shot Fogger Professional Kit Nitrous Oxide System Wet Single Stage 250-500 HP - Direct Port 4000501 Does not fit dually

Does not fit dually

Vehicle Applications: 2017-2023 Ford F-250 Super Duty 81

1 to 2 in Drop

Throttle blade diameters are 1-11/16 for the primarys and of 1-11/16 diameter for the secondarys

Chevrolet: Silverado 97 - 98 5

NOS Pro Shot Fogger Professional Kit Nitrous Oxide System Wet Single Stage 250-500 HP - Direct Port 4000501 Does not fit duallyProduct Description: Nitrous Oxide System Pro Shot Fogger Professional Kit Wet Single Stage 250 500 HP Direct Port Kit The use of nitrous oxide as a performance enhancement has been used since World War II. Allied aircraft used it for emergency boosts in airspeed and altitude capabilities. By the end of World War II, jet propulsion had been invented and the United States' government was losing interest in piston powered aircraft. For nearly thirty