Looking at one of these, but I don’t know anything about them.

I’ve always loved these, but never known too much about them. I’m guessing some of you could teach me as much as I could ever want to know.

I’m a long time E36 M3 owner, do all my own work, just want to get a feel for what these are like to own.

So, let’s have it! The good, the bad, and the ugly!