SilverKnight

My stock air filters getting kind of dirty so I went ahead and ordered a K&N air filter at a local performance shop today. Should be here on Tuesday or so.
Anyone else on the boards have any experiance with them? When I receive the air filter would I need an adapter or something or does the K&N just fit to install? Never took the fair filter out but its just basically pulling the top of the filter out of the hose correct?
They told me it was a direct stock replacement so nothing else is needed...
I was thinking CAI but I still have a warranty and I read on some boards that the K&N got the s2k anywhere from 2-6HP on a dyno. Whether thats true or not, I needed a new air filter and K&N worked well on my 300zxTT (which it should since it had 2 turbos) so why not. Even If I gain 1HP I'll still be happy.

106Dart

I replaced my original filter with a K&N. I didn't notice any difference in performance or gas milage.

Make sure you check the inside of the filter for debris before you put it on, I found a piece of rubber about 3"X1/4" inside the one I bought.

Also it is a direct replacement for the stock filter, no adapters or modification required.

SilverKnight

thanks 106, you didn't have to pre oil it correct?

S2k Dude

You probably will not see any performance gain with the K&N OEM replacment filter but if you put on the K&N Filter Charger (CAI) I've seen the proven dyno results that you mentioned which is about 2-6 hp consistently across the rev band.

Check out this link to an older thread on S2ki:
http://forums.s2ki.com/forums/showthread.p...&threadid=69701

mosesbotbol

It takes a couple of weeks before you'll feel a difference, but you should notice a little better throttle response and more VTEC response- nothing major though.