O2 sensor hole/bung size????
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O2 sensor hole/bung size???? I have aspeed density tune done on the car and no longer utilize the holes/bungs that the sensor scres into. My question is what size is the threads that the sensor screws into. I went to ACE and the say its an odd size. 3/4 fine thread was a little loose and couldn't find any thing else which includes metric. We also tried pipe thread and those didn't match up eathier. Little confused by this. I want to plug the holes in the headers all though I do not want to weld the holes shut just incase I sell them one day and get some different long tubes. They O2's I have are ACDelco's and my headers are hooker super comp LT's...Any advice would be great thanks.
I looked at ace hardware when I was trying to plug my O2's and they didn't have anything. The only thing that I could find around was at NAPA. They have some O2 bung plugs. They were $8.xx a piece for me this summer. 
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Thanks alot guys, Yeah like I said I tried ace oh and Orielly's. Both places the guys where ******* idiots though. It was like talking to a 5 year old looking for parts, lol! Right on, I'll hit up NAPA thanks again Steve
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So these bastards are $8 or so at napa, i guess that may be roughly the same getting these shipped. I'm going to look at locally tomorrow if not I'll be ordering these. Thanks for the link!
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Got them at the same place I originally asked for help at, Mentioned M18 and guess what went home with to plugs for under $6. really jacked up they couldn't help me out when I had the original question of what can I plug this with, lol! Dumb Bastards. Thanks guys once again
