MIL Eliminator

I have posted some threads in the past about installing headers and whether or not the SES light will come on. After talkign to several people, I've concluded that the light will come on. I was suggested to get a MIL Eliminator. I've never heard of these before and did a search and I found out that it helps to clear the SES.

My question is: is the MIL Eliminator a necessary item to have or is it just a waste of money. If it is recommended, where could I find one for an 03 GS? Any help on this would be great.

thanks!!!

If you get a header that have a bung for the O2 sensor, you install the O2 sensor, and tune the car with an Air/Fuel controller, you will not get an SES light.

Good summary johnny, thats all I need to know