I was troubled about noisy sound from under the floor...
And I found out the exhaust leak and loose connection of the center exhaust pipe.
![Exhaust Leak](maintenance/moremore/001.jpg)
Removed the bolt. Also, I removed the rust using the wire brush.
![Exhaust Leak](maintenance/moremore/002.jpg)
Fixed the bracket with the new bolt and nut.
![Exhaust Leak](maintenance/moremore/003.jpg)
Finally, stopped the exhaust leak and noisy sound.
![](egstbk/gif/smilies/smiley.gif)