I have to post this. I think it is to funny.
DO NOT BUY. THIS IS A SCAM. all it is, is a air mover for boat motor compartments or of the same sort. Other various sites actually use bilge pumps or regular PC fans.
ooohh wow 1psi boost! if it could push that much (if it didnt restrict the flow) I doubt it is enough to make a difference.
http://www.electricsupercharger.com/eram2.php
TF