Abstract: A supercharger (10) is positioned in the valley of an automobile engine (60) so that it fits under the engine hood (25). The supercharger (10) has a low profile air inlet (14) at the top that passes air to an inlet tube (16). The height of the inlet tube (16) decreases and its width expands as the inlet tube (16) extends away from the air inlet (14) to keep a low profile while minimizing restrictions to airflow. The inlet tube (16) supplies air to a compressor (18) at the bottom. The pressurized air flows through a large and thin intercooler (24) directly above the compressor (18). The cooled air is fed to long and straight intake manifold runners (28) positioned above the engine heads (61, 62) of the engine (60). The supercharger (10) provides a large volume of low pressure and low temperature air charge to the engine (60).