[Wisha Haddan H3]

Ducky. You’re right about the H3. It already pulls in cool air from the outside. But the K&N and Volant intake systems don’t provide a swirling effect and don’t actively cool the air. They only provide these benefits.

1. The oiled cotton filter element is less restrictive than the OEM dry paper element. The element is also shaped as a 360 degree conical filter for smoother and more uniform airflow into the intake tube (square intake filters can create eddies).

2. The intake tubes are optimized for maximum airflow. They are mandrel bent to maintain uniform tube diameter. This helps prevent unintended pressure waves that could impede airflow. Also, based on extensive testing, the diameter and length of the intake tube is designed to optimize air velocity and pressure waves.

3. The filter elements are enclosed to separate them from engine heat. The stock airbox already does this, but many aftermarket systems omit the enclosure to save money.

4. The filters are washable and reusable (when properly re-oiled)

Stay away from cheap shiny systems with open elements. They can actually rob you of power.