This is from my brothers turboed Jetta VR6. Its been banished to collision heaven now.

But........

Here are some sounds..... Now I finally know what was happening back then, damn hindsight.

This thing dynoed at about 350-400 depending on the tune.

http://www.concernfordesign.com/sounds.php

 

I just listened again to ALL of the links. Not all have the flutter. Sorry.

But doesnt that sound awesome overall!

. miss that car....