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[QUOTE= Most systems I see for our cars are of the non-cat variety without all the 02 bungs. [/QUOTE]
I've NEVER seen a set of headers WITHOUT the bung holes on them. I think you are mistaken. Now it is rare to see the 1st set of cats intergrated into the headers, that part is true. I've seen it on 2 diff. brands. But most don't have that feature but STILL have the bung holes for the sensors.
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