http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=33597&item=7960777941&rd=1
im on ebay alot and see these all over what are they and do they really work it cant for 3.00.... 7960777941 item number

DON'T WASTE YOUR TIME ON THIS!! It's nothing! all it is.. is a resistor that you put in your MAF that "tricks" the computer to think that it's recieving colder air, making your A/F mixture different. It might work for about 2 days, then the PCM will trip the check engine light... It's a 0.25 cent resistor that your gonna put in your 17,000 dollar car.

I'm sure if you do a search you'll find tons of topics and posts on this very "dumba$$" trick

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=33597&item=7960777941&rd=1
im on ebay alot and see these all over what are they and do they really work it cant for 3.00.... 7960777941 item number
Two words... SNAKE OIL!!

yep. snake oil.