Kanai3 has all titanium screws.. also has a redesigned chassis.. which is lighter.. and lowers everything.. redesigned shocks.. and front end.. the front arms are different to allow a farther steering throw.. little things like that.. you can get them on Ebay for the Same price as the K2.. so..
i am in a possible trade and i need to know if the kanai 2 is a awsome buggy, I've heard it is great and that the 2 and 3 are basially the same in performance