Dear Mr Jack Li,
There is one difference between the pictures. Some manufacturers make this header with only one o2 sensor housing to plug in in the end of the header, others make these headers with two housings to plug the o2 sensor. Alhough d series honda engines use ony one o2 sensor, it is important that on these exhaust headers the o2 sensor housing is in the beginning of the header, like in my picture (i attached it and marked the second o2 sensor housing which is missing in your picture). The factory made o2 sensor connector is connected to the engine computer and has only a small lenght wire to plug it to the o2 sensor housing on the exhaust header. It cannot reach the second housing in the end of the exhaust header, that is under the bottom of the car.. This is a little unexpected. Please check if tour headers have two o2 housings, maybe its only not in your picture ;) If you find out that your exhaust headers have only one o2 housing, could i have them for a lower price? I could arrange the second o2 housing job myself for this time as long as m not buying a large amount. Looking forward to good news :)
Best regards,
Simonas Brazauskas
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