VELOSTER(FS) >2012 > G 1.6 GDI > Engine Mechanical System > Intake And Exhaust System > Muffler>Repair procedures  
Removal and Installation
1.
Disconnect the battery negative terminal.

Tightening torque
Without battery sensor :
7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.8 ~ 7.2 lb-ft)
With battery sensor :
4.0 ~ 6.0 N.m (0.4 ~ 0.6 kgf.m, 3.0 ~ 4.4 lb-ft)

2.
Disconnect the rear oxygen sensor connector (A).

3.
Remove the front muffler (A).

Tightening torque:
39.2 ~ 58.8 N.m (4.0 ~ 6.0 kgf.m, 28.9 ~ 43.4 lb-ft)

4.
Remove the center muffler (A).

Tightening torque:
39.2 ~ 58.8 N.m (4.0 ~ 6.0 kgf.m, 28.9 ~ 43.4 lb-ft)

5.
Remove the main muffler (A).

6.
Installation is the reverse order of removal.
When installing, replace with new gaskets.