Thanks for the tip. I think I'd like to go with the side exhaust. My Os silent pipe is long and looks like if I go with the RE motor (mounted sideways) it may interfere with the speedbrake function and spoil the streamline looks of the plane. If I go with the side exhaust it will look cleaner, but I may have to make a header up because the drop looks greater than anything I have. I guess with the pipe under the wing it would may make wing removal more difficult also? Debating on taking the easy way out and go with a performance specialty muffler but that would not be "classic".

The internal system on the Eclipse was nice. This plane is also much smaller than the Eclipse. Almost .40 size. Should rip with the right setup.