ANY turbo is subject to install and components supplied.
I have seen just about all the kits out there run like crap and have also seen just about all of them run awesome. Setup and install is the key.
Don't waste your time with a pump gas kit as you will just want more anyhow. Also make sure that you get it installed by someone who has done 7-10 or more kits (this is easy to find now that turbos have become more common).
Get it clutched and get the proper gauges.
I would also HIGHLY recommend that you go out with the installer and ride it for a bit and have him show you any tips or tricks that they have.
I usually spend about 50-100 miles worth of riding on a turbo kit to get it tuned correctly.
Be prepared to check things more often.
Be prepared to pay premium price for good fuel (race gas).
Be prepared to piss your pants (from laughing, crying, are being scared...cuz you are gonna experience all three).