Quote Originally Posted by hondachik
don't do it. if u have a d-series then the 2nd oxygen sensor will not be able to plug up. i have that problem because i just got one 2 weeks ago. it messes up the fuel/air ratio for my car now. don't do it unless u dont mind not having the 2nd oxygen sensor.
You could get a bung welded in for around 15-20 dollars.