not sure why you would say that....there are many many posts about upgrades. On this board I probably have one of the most converted 986's feel free to look at
www.09860.com for a few pics if you havent already seen mine around.
Yes there are Turbo kits for the boxster, but unless you plan to make an engine upgrade you would probably see your best gains getting a supercharger(cheaper too)about 5 k for supercharger and about 15-20k for twin turbos(noone does a single turbo kit for these cars as of yet)....check out
http://www.turboperformance.com/ . Last i knew though about these superchargers, spoke to guys on phone, this supercharger is only good on a stock platform. If you have performed any upgrades to the engine or exhaust then that package is not for you.