I am thinking about getting one of these two for my Blaster CT or Vitos. Could you tell me which one gives better performance and how much of a difference it would make on my Blaster. Thanks

 

there was a topic on this before, they said ct isn't that good too go with, ive only heard good things about vito's and i was thinkign about going with vito's also, they specialize in shee's and blasters, they got good stuff

 

I called vitos and talked to the guy he sounded like he knew exactly what they were doing. he said in the kit you get the bigger piston, higher compression head gasket, and the sleeve. he said you'd need to machine about half inch of matterial off for the sleeve to fit, and then port match the head to the sleeve. he also said the main reason other kits don't last as long is becasue the pistons, vitos is twice as thick as a stock blaster piston therefore it lasts longer. and othe rcompanies are using thinner piston for weight reasons. but they have had no problems so far. and you can run it on a totally stock bottom end! he also told me that the stock carb would feed it fine and if you were togo bigger they recommend a 28mm mikuni.
i'm totally sold on them now since he completely explained it to me, and was great about it. i'm saving money now to put the kit on my 2000 blaster and see what i results i get. i hope i helped some.