1bbl Aluminum intake

If it's in one of those two rear ports on the number 6 runner it should unscrew. Those two ports i'm referring to have a raised ring/body that reinforces the threads and should prevent them from breaking. If you do try to unscrew what's in there make sure you grab it and not any part of the aluminum. Drilling it out is another option. While not what I consider a preferred method, you could J-B weld the opening closed also. A pic would help.