AFAIK, LCE is the only company offering a supercharger kit for the 22RE. The kit is not cheap (~$5k at a minimum), and will not work with the stock EFI; it requires using a standalone EFI computer, like the SDS. HP is around 185, but I don't know if this is at the rear wheels or the crank.

I don't want to open up the whole turbo vs. supercharger debate again, but the accepted wisdom is that you can make more absolute power with a turbo, but a supercharger will give you better low end power at the expense of top end power.

From my own experience, a turbocharged 22RE can give you *much* more power than you really need, although the cost of building a stable, reliable turbo motor is steep.

My .02 cents,

-Jeff