Naa u prob need a retune..maybe if u cant find any leaks then leave it alone..mine is worst dude...all u hear is wooootttt tatatata lol..ur boost guage showing any leaks when u boost?n where is ur vaccum on ur boost guage?

 

definitely sounds like your problem is bigger than mine lol. doesnt appear to be showing any leaks. holds boost nicely

 

Yup sure is..its in the body shop gettin a full paint job (wicked white) my fmic couplings are leaking and my filter is messed up..do u have the aem big filter ..like about 6 inches

 

yup the big blue aem one

when i had my blitz it never did this... i had this on it before i swapped the 9 motor

 

Sounds like blowoff valve to me. Is it adjustable? I have an AP adjustable BOV and sometimes after prolonged times of high boost, it can "loosen" a bit and I'd hear that. All I do is tighten her up one or two turns....... no more noise.

 

I have a Greddy bov..umm try swapping it out n see cuz mine is tight n still flutters btw is that pic up there with the aem?if so that thing looks weird lol

 

i just have the stock 9 dv... idk if i can adjust that...

 

no thats the blitz i used to have. when i had that on my car it had no issues at all

 

Sometimes with mine too, if it's too TIGHT I get the flutter as well. Having too much pressure on the valve opening can cause it, it took me almost a full three weeks after buying this car to find that PERFECT spot that the car loved at all boost levels.

 

Damn..

 

Let me know how it goes buddy.

 

Got the same Problem, keep us updated if you find out something I'm getting my Tune to E85 sometimes this week. I'll ask him what he thinks

 

will do. im taking it in to a shop here in tucson this week too. ill let you know what they find, if anything...

 

The 9 DV should not be fluttering like that. My guess is that you have a pinhole leak in the vacuum line somewhere. Or maybe your wastegate is stuck?
Normally when you hear that sound it's the BOV not staying open while releasing the air. It will flutter open/closed/open/closed (hence the flutter sound). This can be caused by many different things:
adjustable BOV not adjusted properly
Too much preload on the BOV
vacuum leak in the intercooler pipes, couplers or vacuum lines.
faulty BOV

Those are just a few things to try. But that is NOT a normal occurance with the stock 9DV.