What's the difference between N20 and NOS?

The full name of NOS is nitrous oxide system, that is, nitrogen acceleration system. NOS, like turbocharging and mechanical supercharging, aims to increase the oxygen content in the engine mixer, improve the combustion efficiency and increase the horsepower. The difference is that NOS directly uses nitrogen oxides, that is, N20 (nitrous oxide, also known as nitrous oxide), both of which achieve their goals by increasing air density through external forces. Because N2O decomposes at high temperature to generate nitrogen (N2) and nitrogen (O2), NOS system uses this principle to inject N2O into the combustion chamber of the engine, and uses the nitrogen generated by N2O decomposition to inject more fuel, thus squeezing out more horsepower instantly.