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Old 02-07-2013, 03:32 PM   #9
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So this is the same this as the FC and OBX 4-2-1 headers. No you cannot run a catalytic converter on these. Even if you were to get one fitted after the header it would be too far away from the engine to get to the right temperature to filter also you would have to run the second 02 sensor after it and plugging one of the wholes in the headers.
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