Originally Posted by Chopshop85

If you are willing to spend 2 grand for the sake of a noise then EFI conversion would achieve just that.

Honestly I think that efi chatter sounds pathetic as its to high pitched.
http://www.youtube.com/watch?v=Rhyfvtt85Cg&feature=related
http://www.youtube.com/watch?v=baUEBAKw5vQ

Videos examples are fiesta's, dont know if the turbo size would make much difference or not? hopefully someone will shed some light.

Much better sound
http://www.youtube.com/watch?v=cPZZvd55hxg
more breathy and forcefull.