Air leak in the exhaust system

[kiroh]

After carefully checking my new Remus GP exhaust I found out that there is an air leak between the silencer and the connecting pipe. Both are held together by two springs which are very tight but still air manages to escape and there is a black residue left around the connection.

I've tried rotating the silencer and connection pipe to give it a better seal bit it didn't help much. Is there anything else I can do to stop the leak?

[DaveS]

My Remus Grand Prix doesn't have that at all.
It has a collar that tightens around it. I still had to use some Fire Gum to ensure a tight fit.
MY Remus still back fires though so its not down to an air leak.