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Discussion Starter · #1 ·
I recently ordered a DC sports ceramic 421 header for my 94 EX sedan. You know how on the 5th gen Ex's there is a small 6 inch pipe between the CAT and the headers? It has the O2 sensor in it. Will the new B-pipe just bolt right up to this small section of pipe? Or does it replace it completely? Will I need to remove my O2 sensor? Please help.
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