When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
It's doubtful that this one even has a hole in the hood (making it a parachute)... and even if it did - there is no point blowing air onto the plenum (other than a weak and retarded attempt to cool it down).