23-07-2006, 08:26pm
When i was playing with cars i use to make up a manometer on the engine side of the air filter to measure the restriction of a filter/airbox design.If a magnahelic gauge or sensitive digital gauge could log info whilst riding a good comparo can be made.As busgo said response is the biggest noticeable difference with a higher flowing filter,you,d never pick the hp difference. <i></i>