S&B Filters tests and post our findings to the standards
most other performance filter companies don't -- ISO 5011.
Airflow 101
Want more power and better fuel economy?
It all starts with airflow. The more air that your engine breathes,
the more oxygen it receives. More oxygen results in a better combustion.
Better combustion translates into more power and better fuel economy.
This is why your vehicle runs better on cool mornings than on hot
afternoons as cool air is denser and contains more oxygen. You can
feed your engine more oxygen by reducing the restriction of the airflow.