I need to replace the muffler in my 87 325e. I saw this ansa free flow on Bavarian auto. I did some research and it seems to be decent enough and will suit my purposes. My only question is what kind of process goes into installing one of these. I plan on doing a cat delete unless this has a cat built in buyt it does not seem to. What do i need to buy to make this work. Does this bolt on or do mods have to happen? If I am going to do a cat delete do i need to weld in a replacement piece. Or does the bav auto center pipe replace the cat? Any advise would help. Or other muffler/ exhaust suggestions. budget is around $600.
Here are some pics of muffler

Bavarian auto says this piece is also required.
Here are some pics of muffler
Bavarian auto says this piece is also required.
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