That one looks like its basically a resistor the tricks the IAT to reading different.
http://www.ebay.com/itm/Performance...fits=Make:Pontiac&hash=item35d242c4c8&vxp=mtr It actually works really well. I feel a difference in power. I recently put one in my moms car(G6) and it did also improve her fuel economy by about 3 MPG on the highway.