Hi!
The OBX Type R headers came with the O2 sensor fitting in the headers (If I
remember correctly, it is in the 3rd tube in the headers). The OBX headers
also came with the EGR valve tube fitting. The problem I encountered is that
the fitting for the EGR valve tube did not fit. The muffler shop welded the
EGR valve tube in my car to the fitting in the headers. Because I have no
cat, now I have a check engine light on probably because of the rear (under
the car) O2 sensor. I am trying to figure a way to bypass the computer from
reading the rear O2 sensor. If you need anymore info. feel free to ask!
Manny
99 Sentra
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