My Googling fails to find anything regarding a quick shift kit for a 1st gen R6 (1999). I was hoping maybe somebody here can point me to something. Thanks!
Check mpsracing.com You'll basically need a stand alone quickshifter kit. I believe Dynojet even makes one.
Tony- Ask Tim Weig about his Cordona shifter. I can't remember off the top of my head where he got it, but they are decent units and completely stand-alone.
I've installed the MPS quickshifter boxes on carbureted motorcycles using a switch from Rising Sun Cycles as the trigger. So far, every box and switch has provided years of service with no issues.
When I had my 1st gen R6 I installed a Cordona QS Very easy install, maybe took 2 hours start to finish. I had an issue with the control box, but sent it back, got a new one and never had another issue. Just a glitch I guess. http://www.cordona.net/shop.htm
These Starlane NRG quick shifters will work on almost anything. http://www.yoyodyneti.com/ProductInfo.aspx?productid=CEPWSNRG
I would use the cordona PQ8 setup. It is one of the best stand alone quick shifters on the market. If you need one send me a PM I am one of the few retailers for that shifter in the states.