FenFab V2 Intake Fluttering sound

[golivefree]

Question for those who have the FenFab V2 intake.

I'm getting an interesting "fluttering" sound on some pulls. It doesn't happen all the time, but it's pretty often.

See the video, you can hear the sound right at 0:03. (Sound up). Video at link below.

https://photos.app.goo.gl/jcX8CreJVdrPoetVA

Any idea what this fluttering sound could be? I almost think it's the intakes competing for air or creating some weird airflow pattern.

Total mods:
2022
FenFab V2 intake
Thermal 3"
CVFab catted downpipes

 

[beezee]

It almost makes me wanna say its wastegate rattle

 

[BrooseDaMoose]

Question for those who have the FenFab V2 intake.

I'm getting an interesting "fluttering" sound on some pulls. It doesn't happen all the time, but it's pretty often.

See the video, you can hear the sound right at 0:03. (Sound up). Video at link below.

https://photos.app.goo.gl/jcX8CreJVdrPoetVA

Any idea what this fluttering sound could be? I almost think it's the intakes competing for air or creating some weird airflow pattern.

Total mods:
2022
FenFab V2 intake
Thermal 3"
CVFab catted downpipes

I listened to this several times and can't hear anything unusual.

 

[Dale5403]

I listened to this several times and can't hear anything unusual.

Same here.

 

[enphor]

I heard like 4 little warbling whistles is that it? Does sound like turbo flutter/compressor surging. Are you running a BOV?

 

[2020FordRaptor]

I listened to this several times and can't hear anything unusual.

Third this. Everything sounds normal.

 

[WhiskeyBiskey]

I installed the Fenfab V2 about a month ago. It definitely adds some insane intake noise. I have noticed the same thing on mine a handful of times, a flutter on a harder pull. Mine doesn't have a blow off valve, just the stock bypass valve.

Try this, give it a couple of revs in neutral in Sport mode, then in Normal mode. You'll hear the flutter after you let off the throttle in normal mode, that should be the same sound that you are mentioning. Again, not sure why it is happening during a pull, but I can confirm I have heard it a few times and reving it in those different modes can help you hear it.