The bottom line is for what you spend for the basic bolt-on K swap (including all peripherals and support items) I can spec a B/H series K-killer and you will have change left over for dinner.

Now - that B would likely be a little more "high-strung" than the K but will def be streetable. It would also be just as reliable (if not more) when done right. In my sig -- the built B/H is on the left, and the K is on the right