turbo on 99 r1??

hey guys, i just wanted to know much much power difference you can expect from a turbo?? how much is it to get something like that installed? and is it really worth it? if so what are some good turbos you can find out there? if you do you get one installed are there other parts you have to modify on the bike or is it just the turbo? whatever you guys can tell me about the turbo would be good since i dont know anything about it.. thanks guys

mcxpress makes about only one. its about 3-4k plus install i think. depends on motor and boost levels. u can get upwards of 260 or so and streetable. read sticky thread in mechanical section.. all about turbos