this
o2 simulator
or this one
secand one
there is a 10$ price fiff is why i am asking and would rather buy the cheeper 
 
 
ok no one has a clue i take it?
 
looks the same to me

1989 Turbo Trans Am #82, 2007 Cobalt SS G85
 
 
Actually his first link is to a o2 simm for a 96. When I bought mine from Caspers they said that there were differences between the years. So I just thought I would link him to one that I know would fit an 02 which is what his profile says he has.