Underhood Conical K&N vs. Stock Airbox with K&N

[elma22]

Hi
Thought I pitch in a little. There was a simular test done using MAC cold fender intake and the underhood conical intake. The fender intake provided more horsepower throughout the band with about 9-11 horsepower at the wheels, I can't remember exactly, where as the conical filter under the hood provided top 8 horsepower at the wheels and faded down to 4 HP at higher RPM.

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