Heza Posted May 27, 2003 Report Share Posted May 27, 2003 ok, so i'm gonna order a high flow catalytic converter for my car and i cant look at it cuz some of you already know, i'm in the middle east. so, maybe one of you can help me. i have a '94 Grand Prix SE. does my cat right now have the air tube on the side?? what's the difference between 2 and 3 way converters?? which shall i use?!? please help me...anyone! :? Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted May 27, 2003 Report Share Posted May 27, 2003 I *think* your cat does. I know it has an O2 before and after it. I think in 94 they went to the cats with the air tubes. Robby Quote Link to comment Share on other sites More sharing options...
cutlassdude96 Posted May 28, 2003 Report Share Posted May 28, 2003 I belive an air tube is for an air pump and it was 96 when they went 2 O2 sensors. Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted May 28, 2003 Report Share Posted May 28, 2003 W-bodys with a 5spd all had AIR pumps and the attached to rear exhaust manifold Robby Quote Link to comment Share on other sites More sharing options...
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