Read the whole eBay sales pitch. Now what would really be compelling is a tripod mounted camera video taping a thermal display of it actually cooling the engine down. Not knocking the product, just needs some more convincing exposure. I looked on Youtube and didn't find anything. I guess another question would be, "How much more heat is it going to blow on your right thigh?"
I'm very interested, would just like to see some more results. Keep us posted on what your opinion after using it a few weeks.