Power isnt the issue though really stock 238mm na brakes can lock up the wheels even with pretty good rubber (disregard heat atm), its how close you can get to the point before locking up that you want. Power would be the same or similar id imagine as the leverage would be the same as its the same size disc, but they say its the added feel you get with twin or more pistons. But you also need to keep the piston area matched to the master cylinder or it can go a bit funny too lol