I've got a Hamicad FE with a Holeshot high mount. I made some brackets to fit behind the license plate and attached Watsen Designs mini LED blinkers to the brackets. To fill the old turn signal holes in the FE, I put in some u-bolts and use them to hook my bungee net. It works out great and I didn't have to drill into the fairing or FE. I have pictures at work and can post or email them tomorrow.
I have the Hamicad FE and a Micron highmount. I bought the hamicad FE just because it reuses the stock signals. Anyway to answer your question, yes you can make it work. Your 2 options are tilt your muffler away from signal then tighten clamp, or take apart signals and use a razor knife CAREFULLY to trim down the rubber stalks until the whole assembly will clear the muffler. When I first installed it the signal was just touching the muffler( I have an oval carbon fiber muffler). So until I got around to fixing this it didn't even melt. After I got my dyno tune done and a tre mod it started to melt alittle, so then I trimmed the stalks down. Sorry I don't have any pics for you. Hope that answers your question.