I am new to the forum and have enjoyed reviewing the many threads in restoring an Alfa. I currently own a 1989 Spider Veloce and have been working on its restoration. I recently noticed that there is a sizable crack in the down-pipe connected after the manifold. I am attempting to restore my Alfa to its original and pristine condition and I am unaware of what effects this gash will have on the functionality of the exhaust system. I do have an idle adjustment problem when cold, but the rest seems fine. Are they related? Anything I should be concerned with? Your advice is appreciated.