Quote:
Originally Posted by cellsafemode
The k&n drop in will net you most of the gains any 'cai' will get you because most of their gains come from the filter as the air bridge is essentially the same and they all suck air from the same snorkel.
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If a drop in made the same power as a open element cold air intake every modified car would retain the stock air box. The stock air box is a balance between being efficient, keeping sound down, protecting from hydro lock, and having performance. The amount of readily available air a stock airbox can hold is a restriction. The added distance airflow has to travel and the amount of filter area is a restriction. You are dealing with atmospheric pressure and the vacuum of the engine to get air to the engine. Any restriction is a loss of power. Maybe not a huge difference in some applications but to say a drop in makes as much as a performance open element intake is simply not true.