Excuse my ignorance and Im sure Im going to sound like a real noob by asking this question...... but Im wanting to get a K&N pod filter to replace my OEM one as Ive heard they sound alot better and will give me a bit of extra performance as well...... What I wanted to know is, does it benefit me at all performance wise to purchase the K&N piping/intake kit that goes with the pod filter or will it work just the same if I plug it straight into the OEM intake where my old pod filter resides?

thanks guys.

 

Replacing the OEM filter with a K&N filter will do practically nothing. I really don't think anyone could truly hear a difference. However, by replacing the whole intake box with the K&N intake, you'll notice huge differences in sound. Personally, I hate the sound of the K&N intake, and don't think it performs particularly well.

 

I agree with you on the whole dropping a K&N filter in the OEM box. I do half disagree with you on the FIPK. It does perform better than OEM, but their is deffinently room for improvement. I put a BPi stack with the recommended K&N filter and it got even better(according to my butt dyno). I'm wanting to try a custom 3.5" pipe with the BPI 3.5" velocity stack and the FIPK heat shield. After I get an EMS though, so I can see if it's making gains.

Compared to the OEM pipe, the FIPK pipe is longer and a little smaller in diameter. The OEM pipe is 3" and the FIPK is about 2.75"(inside diameters). I think the biggest gains are made due to the filter not being in the OEM box and also the longer length of the pipe. After reading about people running 3.5-4" with good results on various Honda motors, I can only see the smaller diameter being a restriction, especially on an F20/22.

 

I didn't spend much time testing the FIPK that I had, but the datalogs that I did get showed the it was terrible in the low RPM range, and maybe even worse than the stock box. It did seem to shine in the high rpms though.

 

It is terrible in the low RPM range. There is a huge loss of pressure.

Drop in k&N will make a difference vs the stock one even when new. It may be 1.5hp, but it is something.

 

any pics of your fipk with the bpi stack

 

Not as of yet. I never got around to it before some idiot decided to run me off the road. When I get it back, I'll for sure take some pictures. But it looks like a FIPK pipe with a stack mated to it lol. I did have to dremel the inside of the pipe slightly so the stack would mate flush on the inside. Their was about an 1/8" lip all the way around. Also the recommended filter for the stack, rubs on the heatshield on the bottom of the hood; it's huge in comparison to the FIPK filter. It's nothing serious though.

Gernby, I plan on using my AP1 for a road racing eventually. So a trade off for high RPM power, from low RPM power doesn't bother me much(as long as the midrange isn't effected).

 

The k&n drop in filter sounds realllllly good when you take the top of the box off and drive around. I recently installed the fipk and it sounds sick at WOT and looks much better opening up the hood.

 

Do you drive in low rpms on the track?

 

you still have a restriction at the throttle body...