Presilencer and Middle Pipe Installation Note

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

When newly replacing the presilencer or the middle pipe, place alignment marks on the new part in the same position as the removed part.

Install the presilencer to the middle pipe using the following procedure.
1. Align the presilencer and the middle pipe alignment marks.
  
  Fig 1: Identifying Alignment Mark And Nut On TWC
  Courtesy of MAZDA MOTORS CORP.
2. Tighten the nut shown in the figure.
  Tightening torque
  
  41-51 N.m {4.2-5.2 kgf.m, 31-37 ft.lbf}
  
  Fig 2: Identifying Alignment Mark And Nut On TWC
  Courtesy of MAZDA MOTORS CORP.