This is the same header I have but their are 2 holes in the header and I have no plugs. The hole on the left is where I put my sensor in but the hole on the right needs to be plugged. What sizenut do i need? The threads are on the out side so it needs a nut. Or what could I use to plug it?

[IMG]local://upfiles/13814/168B801022EA42C6AD81092C8EEB9FDB.jpg[/IMG]

 

Its an eBay exhaust let me guess.......

 

hmmm... you may need to take it to autobone, and ask them, because they could probably give you a proper way to plug it.

 

Weld it.

Not to mention the exhasut is a peice of **** knock off.