I came across this chap on YouTube - Justin's Pit Lane "Does the ACE A350 Header Live Up To The Hype!?!"
[ame="http://youtu.be/ggQspB1P7a4"]http://youtu.be/ggQspB1P7a4[/ame]
He compared his Revworks header Vs the ACE A350 with dyno results.
Oop's Justin himself has already posted this
http://www.ft86club.com/forums/showthread.php?t=125559