The term 'superchargers' refers to a type of forced induction system used in internal combustion engines. It is an air compressor that increases the pressure, temperature and density of air entering the engine, resulting in increased power output. The term 'turbos' is a type of supercharger that uses exhaust gases from the engine to spin a turbine, which then drives the compressor. Turbos are more efficient than other types of superchargers, as they use the energy from the exhaust gases to drive the compressor, rather than relying on the engine itself.