CozyGirrrl@aol.com wrote:
> We're curious about 13B turbo exhaust flanges, is there any reason they
> need to be one flange for both pipes or do you think it will seal up
> fine with one per?
> We're looking for small weight savings as well as easier to build up
> each pipe. The other ends of the pipes are floating with a double flange
> going into a collector.
>  
> Chrissi & Randi
>

I'm doing one per.  On one side, the runner is welded to the collector.  The other side uses a muffler clamp.  At some
point before I fly I'm going to have to pull the engine to fix a slow oil leak at the front housing.  I will pull the
muffler at that time to inspect the flanges for leaks.