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I'm trying to remove some emission crap from my car. I have a Hot Shot header and there is two holes in it, one for the O2 sensor and another for a tube of the emission system. The problem is, I can't find the correct measurement for this second hole.
![](http://i151.photobucket.com/albums/s126/mrserpr/Picture043-1.jpg?t=1230644124)
If somebody know the correct size of this plug and where I can buy it, please let me know. Thanks
![](http://i151.photobucket.com/albums/s126/mrserpr/Picture043-1.jpg?t=1230644124)
If somebody know the correct size of this plug and where I can buy it, please let me know. Thanks