Removal And Installation

Disconnect the battery negative terminal.
Remove the engine room under cover.
Disconnect the heated oxygen sensor (HO2S) connector.
(Refer to Fuel System - "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: Removing Front Muffler
Courtesy of HYUNDAI MOTOR AMERICA
Install in the reverse order of removal.