Removal and Installation

Disconnect the battery negative terminal.
Remove the engine room under cover.
Disconnect the heated oxygen sensor (HO2S) connector.
(Refer to "HEATED OXYGEN SENSOR (HO2S) ")
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)

Fig 1: Identifying Front Muffler
Courtesy of HYUNDAI MOTOR AMERICA
Install in the reverse order of removal.