O2 Sensor help

[xpttcx]

I'm looking to buy a o2 sensor spacer and need to know the thread size. Any one on here know?

I have a 99 honda civic EX with Megan racing header and the o2 sensor spacer I need is the one to go into the header.


Thanks

 

[mylovehx]

I'm not sure what you mean by a spacer. Do you mean an adaptor peice? If so you can get those on ebay and such. Don't forget to turbo your ex while youre at it