Exhaust help needed
Pulled a p0138 code- bad o2s after the cat. Torch and pipe wrench, got it out. Left the threads behind. I want to replace the cat, muffler and tail pipe. I doubt that I am going to be able to get the cat off of the pipe leading from the manifold. Should I cut it if I can't? Where? At the seam of cat and head pipe? Then what adapter do I need to splice in the cat9 (2 1/4x ? ). Best converter, muffler and tail pipe? Eastern Cat? Magna flow?, I don't want to go any louder than stock, wife will kill me, lol.Thanks in advance for your advice.