progress report:
-slight change of powerplant plans...will be using standard OS muffler...yes, the standard muffler....btw, we are looking for one and will give a fair price
-the standard muffler with bolts and adapter plate is heavy (10.9oz.)...However, the original plan included a greve pipe, pipe mount, silicone coupler with clamps to a short header extension (helped mid range), header extension, silicone coupler with clamps to a wrap around header, the header, and header bolts.......all this weighed in at a hefty 12.5oz. I have included a pic of my Insight with this setup.....power is not an issue, noise is not an issue (still need to get a good db reading) and simplicity gets high marks.
back to the build:
-mounted rear canopy with carbon pins
-still working on front canopy facings....will use a hatch latch here
-closed up the pipe tunnel cutout (see above..

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-reset motor mount position and made a small cutout for OS head clearance
-mounted dorsal fin using an unused portion of the vertical fin