Nitrous Express offers a complete line of conversion kits for all of our systems. Whether you are upgrading from a EFI single nozzle system to a plate system, or converting from another brand to one of our Next Generation nitrous systems, Nitrous Express has exactly what you will need to make the conversion complete. All the conversions begin after the solenoids and include all the necessary hardware. Nitrous Express is the only nitrous company to date that has the confidence in our product to improve your performance and reliabilityÃ¢â‚¬Â¦guaranteed! Includes plate, connectors, jets and hp settings.