Bargain version of a complete nitrous kit. This is a 'dry' system, i.e. only the nitrous oxide is injected by the nitrous system whereas the extra fuel needed will have to be supplied by the carb so upjetting of your carb is necessary. Depending on the jets used with the nitrous system, the increase in power will range between 30-60% - which is slightly less than with a 'wet' system. The dry system is less expensive, though. Included in the package is a range of jets to set up the nitrous system.