Air intake noise

[ahent]

Okay, you all have heard or read about the "whistle in the 2000 to 25000 rpm range in the 4.0 engines. I was curious, don't laugh, if changing the airflow would work. For instance the tornado http://www.tornadoair.com/ I have tried everything on mine, and before getting one of these I wanted the humble opinions of everyone that cares to comment. I could care less about its claims for mileage, HP, etc. What I really want is that stupid whistle to go away. I have tried...
1. disconnecting and/or restricting crankcase air flow from air intake
2. removing the 2 plastic parts from the intake hose (that candy cane looking thing and the square flat one) and plugged the holes
3. combing over the engine and intake with and adjusting parts for tighter fits and checking for leaks

Well, that sums it up. Again, don't laugh. I am just wondering if anybody has noticed a change in noise by using an item like this.

 

[Blacksheep Josh]

what type of filter are you using?

 

[ahent]

I am using the one supplied with the KKM kit, a cone style. I have tried it with an oval style closed end to see it that makes a difference, I had one sitting around from a different vehicle. There was no change in the whistle.

 

[Blacksheep Josh]

It's got to be air flowing really fast over somewhere/something in the intake.

The problem is figuring out where, is it THAT loud?

 

[ahent]

yeah, really loud, at least to me. I have heard this is a problem with the 4.0 in the last generation or two. That is why I thought that if it was air traveling over or around something, I was hoping that the tornado would distort or direct the airflow enough to negate the effect.

 

[CHiNO_PeLoNCiTo]

lol my V8 does that and people think i have a supercharger or turbo LMAO but im planning to go to a K&N intake.... its a little pricey bit ive heard it in action and mated with a flowmaster or magnaflow its nice