thanks for the info but of course as of today i have run into some unexpected financial trouble so i gotta wait on the headers. But my boss just happened to have a NEW GM converter for my car sittin in the upstairs of our shop and he let me have it for 100 bucks. Its a couple years old but was taken off of a new bonneville that totaled a few years back but had super low mileage, so as for that, my converter problem is solved. I'll take all your guys input into consideration when I am able to start buyin stuff for my car. Thanks again everyone. By the way, just a small sidenote WALKER converters = Bad I talked to a few shops around me and they all said they cant get the SES light to shut off cuz they keep throwing the catalyst code. I than talked to one of the guys at GM and said walker actually doesnt make converters that are OBDII compliant. I don't know how much truth there is to that, but just relaying some info I got.