Just thought I would post an update after seeing this thread back up. I am happy to report I have had no further problems with distortion in my Bluetooth calls.
I believe the inside of the top of that bolt is an allen. Grab an Allen wrench to hold the bolt still and use a wrench to turn the nut.
Edit: never mind, I just noticed these aren't the stock dampers.
I was getting people telling me they were hearing bad noises on their end of the phone while I was using my Bluetooth connection. I called service right after somebody told me and they confirmed the bad feedback as well. Dropped it off and had a call within 3 hours that they replaces the...
I love the LED look of those headlights. I've just been sceptic all due to the feedback on the projectors. I hope they work out for you. If the feedback ever gets better on the output from the projectors I'll be getting a set.
I recently installed the pro-kit and love it. I had them on my 12' EX and had some squeaking in the back; never did figure out why. I installed them myself on my 12' Si and haven't had any new noises. I do find that something in the front scrapes on extreme speed bumps, but I haven't checked...