Hey everyone, still in japan sorting things out. Had some time so i decided to ask a question hoping someone knowledgeable would shine some light on this subject. So my friend came back to japan (navy) after a brief visit back to the US. he bought somekinda vortex. He has a skyline here and just recently installed this thing. http://www.tornadofuelsaver.com/272/tornadofuelsaver/tfs.php Has anyone ever heard of this product? He said that it helps but it seems to me that the metal parts n such would block more air flow? i just helped him install it but he can't take it on a ride until he's off duty. Would this thing really work?