Also, how would I find the right K&N filter on ebay?

 

It'll be quicker off the mark because more air is flowing through, but the raw HP gain is around 3-5. There's a nice, satisfying sound as you reach 3000-4000 rpm or WOT.

Usually, it's a nice cone filter. Check the pipe size (measure it) and buy the according filter. My filter was 3", yours could be 2.5 or 2.75.

 

Either intake will give your car a nice roar when you race it up. The cold air sounds a lot meaner while idling though. Sort of like a vacuum cleaner(sucking) noise. I know firsthand because I have the AEM V2 intake. Performs awesome as well.

 

But both of them have the nice "click" as the TB shuts as you turn off your car. That always puts a smile on my face when I come home.

Hey j_man, when (RPM wise) does the CAI roar really kick in...I wanted to install my intake CAI (i have the longer pipe,etc.) but Maryland is just too wet.