For a MyVi, i'' suggest u go slow in this few months or may be years. Since u have a newer K3-VE, why would you wanted to get a 4E? I know K3-VET ain't cheap and with the price now, it almost 5x the price of a 4E but, changing a K3-VE to a 4E is like a downgrade for me, in terms of the engine age and technology. Summore K3-VE ain't that bad u see. Why don you just stuck in the stock K3-VE for a bit longer and start saving ur money for a K3-VET? When u manage to get the money, K3-VET might be cheaper than now. Why hassle to change to 4E and worry 2 get JPJ endorse? think bout it bro....!!!!