do these do that little high-pitched whistle noise that other intakes do upon acceleration?

 

I've read that it does. I think nearly every single intake system with a cone-shaped filter will make the high-pitched whistle.

 

yeah it does. it was kinda annoying at first, but you'll get use to it.

 

Poop in your intake cannot be good for the car.

 

Poop

Yes is does

 

I guess they all do it except for the OEM box.

I am used to it, first with my Injen and now with my Stillen. It still annoys me a little.

So i'll pass on the poop charger then.

 

I know what your talking about i think the sound is actually a little better. the ztube/popcharger "poop" isnt that bad on whistling

 

My OEM box whistled when I was stock, it definitely didn't whistle as loud as the popcharger but it was there.

 

i get the whistle with a ztube and k&n in

 

Mine makes a nice whistle, especially around 2500-3500 RPM.

 

since its a poop charger.....does that mean it's a whistling fart?

 

Watch the fiber!

 

Mine has a small whistle when accelerating and only in a range, I can control it with the pedal. Fun actually and it is just a light hiss so it doesn't bother me, not nearly as much as all the f!@#ing rattles in the cabin.

 

To think about it, I have not heard my whistle from my Injen intake since I installed my HFC's and exhaust. Whistle gone.

 

My PC/Z-Tube combo doesn't hiss, or at least I've never heard it.