Turbine Guy asked ...
Can I replace the old BVM single wall stainless steel tailpipe ... with just a dual wall tailpipe?
Tam (Tam Pipes) can make you a slip-in/compatible double wall tailpipe at a reasonable cost. The quality of Tam's stuff is unsurpassed and they are nearly "bullet proof." The replacement I got from him has given my Bandit many, many flights/cycles of service. You'll be happy (see Tom A's post too).
Mike