Just recieved an email about this...sounds interesting. Has anyone heard of this before? http://www.stylintrucks.com/parts.aspx?selected_prod_ids=5562
i was watching horsepower tv and they were doing tests on the fitch. 87 oct, 93 oct, with or without the fitch, what ever they did with that motor the fitch showed a gain of about 2-3 on 87 oct and close to 4 or 5 with the 93 oct. not to sure about it but those guys loved it. they tested it on a 350 small block on an engine dyno.
It is not snake oil! I did extensive research on the principle and it is viable. There is a member of chargerforumz that is very pleased with it. I think someone at lxforums is running one also. Do you need the link to their site?
"Satfrat" over at LX forums bought one and is real pleased, you can PM him about it and maybe he will come over here and give his feelings. Here is the LX Forums thread. http://www.lxforums.com/board/showthread.php?p=1041642#post1041642