If anyone is interested, I just got an email today from Bassani. They have completed prototyping their aft-cat exhaust for the GT500 and expect it to be available for purchase in the next 2-3 weeks.

Here's a cool video that compares the stock exhaust to the bassanis on the GT500.

Stock vs. Bassani (http://www.youtube.com/watch?v=WJXmbaIiP8o)

Scroll down and you will see Evolution has a video where he is running in the 9's From one of the pictures it looks like he is spraying because the shot is of him purging the system and the nozzle is in the grill. Very impressive.