Edelbrock is known for innovative products, and Edelbrocks Nitrous Systems are no exception. All Edelbrock Nitrous Systems are dyno-tested and calibrated to deliver accurate and safe horsepower gains with even distribution to each cylinder. Edelbrocks jetting calibrations are determined through dyno-testing, not simple mathematical formulas, which do not take into account real-world variables. Available from 40 to 250 horsepower, Edelbrock Nitrous Systems and components are the quickest and most reliable way to get large horsepower increases with a minimum of engine modifications and expense. Performer Nitrous Systems are available in both wet and dry systems to give you a 40 to 100 horsepower increase at the flip of a switch with an installation time of approximately 4 hours. If you want to take it up to the extreme level we have Victor and Super Victor Direct-Port Nitrous Systems which yield a huge gain of 75 to 250+ horsepower!