ATTN: who bought ebay headers?

I really really need someones help. I bought headers for a civic dx off ebay. They came with the headers and the downpipe. On the downpipe was a hole for a second oxygen sensor, but there was also a cap that screwed into the hole in case you dont want a sensor there. My problem is that i didnt tighten this cap and ti came off at some point and i have a stupid exhaust leak. there was also a similar cap on the oxygen sensor hole in the headers. If anyone has this cap and can send me one, PLEASE let me know.

Wasn't there are two holes with two caps? You only remove one cap to put one 02 sensor in and you lost the other cap that was un-use on the pipe, so why don't you use the cap that you remove for the o2 sensor and cap off the missing one?

i lost them both. does anyone have a replacement or can recommend one? id be glad to send you a check ro somethign if someone can help me

You might be able to buy one but if you know you're never going to use the second bung, take it to a welding shop and have them weld it up. Shouldn't cost more than $10.