Well I got you something I made with my Iphone awhile ago, hope you will find what you need. You'll get a glimpse of it around 0:20. It's pretty faint in the video but it's louder in real. Some people hate it when cruising down the highway as the sound keep whistling. Personnaly I kinda liked it.
[video]http://s1255.photobucket.com/albums/hh628/gossedeglace/?action=view¤t=Whistlesound.mp4[/video]
FYI the whistling sound of the TBS works with the CAI, the factory intake doesn't suck enough air to make it whistle... I hope I'll get that sound back with my snorkel :thinking: