Dynomax muffler installation

Installed Dynomax Super Turbo muffler #17747 today.

mine doesn't have a cat,  glasspack was installed instead of cat.

Measured inlet O.D of inlet and outlet of old muffler

Inlet O.D is 55.13mm

Outlet  O.D is 48.08mm

  New muffler is 2 1/4" inlet (57.43mm) and outlet (57.39mm)

Removed old muffler (top) and compared with new one (bottom)

Old muffler inlet connected with glasspack using U-bolt and outlet was welded. Disconnected outlet pipe using hacksaw

 The difference of O.Ds are 1/4". made a 4 slots using hacksaw 

and directed them like photo below, for easier compressing

 Outlet pipe connected to muffler using U-bolt

inlet was very little bigger than glasspack outlet, made a 8 slots and U-bolt tightened.

outlet

for comparison below are "before" & "after" video

before

after