More power then you will ever need, got a Kawasaki ZZR1400, Left wanting by its paucity in the horsepower department? If so, you need is one of these, a modular turbocharger kits for the Kawasaki ZZR1400.
We not want to get into to much technical details, as this bolt on is a fairly complex area, but essentially you can buy a kit for your bike, which gives you 300 horsepower, with no engine changes.
Three kits are available, with the top kit giving up to an insane 680 horsepower depending on your mental stability and depth of your tuning "resources" pockets.
Getting into this jet-engine level of power costs almost a quarter of a million (Thai Baht), so you might want consult with the misses in the house.
We hate to be the source of relational problems, also with the low enforcement in Thailand of the speed limit we cannot take any responsibility of people taking of to a place in the sky. Please people drive careful..