I will take another look at the exhaust... but pretty certain that it is secure being that it is all new and examined back in the spring.

Hey, thanks for all the replies. It is not the clutch, the noise remains constant when clutch is pressed in. Having just replaced my Motronic (old one had a bad idle circuit) I paid closer attention to the symptoms today. Here's some more observations... gets better but does not go away when rpm's i...

Hi. This is my first post so want to begin by giving a BIG thanks to the e30 community for making this an amazing resource for a newbie. I've enjoyed seeing and reading about your projects! I'm a new super e owner and unsure what is causing this noise when I idle. The sound is like rocks being tosse...