Kurt--
got mine right here from Pelican - its really great
installation is a snap - just need a 27MM socket and a 5MM allen wrench and that's it. took me about an hour and that included taking apart the headlight flasher/turn signal switch to try and get my 'flash' back.
without that detour, 15 minutes tops.
I ordered the adapter ring too - works well
listed under Pelican-Recommended 911 Upgrades