i was driving on the highway and something under my car fell off and the tone of my exhaust sounded weird so i pulled over and noticed the bolt that screws into the hole on my mid-pipe fell out. does anybody know what size this bolt is so i can run to the store and get one asap. i believe it's the same size for the 02 right?

 

18mm i believe

 

jack the car up and pull the other off. That way you can get exactly what you need. You may also need a nut as well, dont remember exactly.

 

I believe he is talking about the O2 bung on the midpipe. There is no nut, or other bolt.

 

yup yup so u know the size of the bolt that goes into the hole?

 

damn it sat the top of my head to. i put an evo exhaust on like 5 months ago.......

 

As I stated before the O2 bung is 18mm.

 

The store will probably let you take a few out to try