Identical to "patented" Hiclone http://tornadofuelsaver.com/ Sigh, sucked in again Someone took the trouble to compare http://www.salemboysauto.com/tornado.htm Found a few others, all say the same. Junk http://www.toyota-4runner.org/showthread.php?s=414d8ec9bbdf1e61c8061d7e215e0 b16&postid=212735 I can't imagine how much more mixing one of these simple vortex things could do AFTER a turbo-charger -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist