Bigger K&N?

[mustanggt3685]

Ever since I put my PI intake on, I have noticed that my K&N filter (FIPK) has always made a fairly loud "sucking" or "whooshing" noise when I stomp on the gas. The air silencer is removed, so I have assumed that's why I can hear it. On the other hand, should I get a bigger filter if the sound indicates the engine needs more air?

 

[stangbanger01gt]

Ever since I put my PI intake on, I have noticed that my K&N filter (FIPK) has always made a fairly loud "sucking" or "whooshing" noise when I stomp on the gas. The air silencer is removed, so I have assumed that's why I can hear it. On the other hand, should I get a bigger filter if the sound indicates the engine needs more air?

I think the sound is telling you you're getting more air now so I don't think you need a bigger filter. The pi is better flowing as is a k&n flilter and w/ the silencer removed it's not uncommon to hear a ''swoosh'' of air when you hit the throttle. BTW, I think that sounds awesome! I have the FIPK2 and love it.

 

[mustanggt3685]

Excellent. Yes, me to, the sound really makes the driving experience fun; thats why I really didn't want to have to get a bigger filter!

 

[Scorcher2005]

No, thats normal, which is why most cars come stock with an airbox, which also acts as a silencer.