Dynojet Power Commander 3 USB Quick Shifter Sensor Dynojet Stage 1 jet kits are developed to increase carburetor function and performance. These kits work best with stock engine and air filters with stock or modified exhaust pipes. The addition of the Stage 1 jet kit improves throttle response and typically increases power by 5 across the rev range. Features Increase power and smoothness throughout the entire rev range, while maintaining optimum fuel economy Kit includes comprehensive instructions which show step-by-step installation and testing procedures to ensure a perfect setup every time This stage one kit is fully adjustable to allow the use of well-designed aftermarket pipes and stock replacement air filters In most cases power increases of 5 can be achieved