Cold Air Intake Question

[my67rt]

I recently put a AFE CAI on my 07 4.6 F150 and when I get on the throttle now it sounds completely different. Its a deeper growling sound. Has anybody else noticed this on their trucks that are running an CAI?

[Jackpine]

Originally Posted by my67rt

I recently put a AFE CAI on my 07 4.6 F150 and when I get on the throttle now it sounds completely different. Its a deeper growling sound. Has anybody else noticed this on their trucks that are running an CAI?

I wonder if this is the "drone" that many people complain about? The homemade CAI does not seem to induce any additional noise.

- Jack

[my67rt]

I guess you could call it a drone. The truck just sounds completely different now under acceleration than it did befoer the CAI. I dont really mind it I just want to know what about getting more air causes this sound?

[Dixie Design]

Yes, it's the normal "drone"

CAI's don't have the "ribbed elbow" that deadens sounds, just a flat curved tube. Excuse my lack of better terminology, my brain is on shut down today.

Bill can get a lot of the drone out of most CAI's with his custom tunes.

[my67rt]

Good deal, I just sent off my Edge to be converted to a gryphon and am getting a custom tune also so hopefully it will help. Thanks for the info Dixie Design.

[88Racing]

The drone noise is cool at first. Really cool if your a kid impressing friends. But after a while it become kind of a bother. As dixie said earlier the drone noise can be tuned out. If you get the gryphon you can run level 2 canned tow tune until the custom tunes arrive.

Lars