http://www.araoengineering.com/VWheads.htm 

Theres also this thread on shoptalkforums

http://www.shoptalkforums.com/viewtopic.php?t=68968 

I bet they cost a bomb, I remeber seeing the V8 ones in a magazine a couple of years ago, but never really seen any results.

oh sweet!!! :o

I'm going to find out how much they are for type IV's and start saving. This is way too cool for school.