K&N High Performance Air Filter, Enough performance improvement to justify the cost? Options

[JawjaPorsche]

I was reading K&N's website about their air filters:

High flow air filters designed to improve engine performance
Designed to increase horsepower, torque, and acceleration

Has anyone put these on their stock FI Teeners and experience any of the above?

I am talking about the filters that go in our stock air filter boxes. Not external modification filters. I noticed Pelican Parts sells then as an option.

http://www.pelicanparts.com/cgi-bin/smart/...76%29%2C%20Each

[Randal]

Here is another data point.

When we were dyno-ing my race engine in LA at Roger Crawford's place both Roger and Neil Harvey asked Paul and I to take off the K&N air filters and see the HP difference.

We took them off and did a pull and it made no difference in HP or torque whatsoever.

So what this told me is that a K&N filter doesn't really filter much; protection is likely compromised. (IMG:style_emoticons/default/dry.gif)