Most HP on a Metro? (as far as KAW)

[oneEXMARKfan]

I was just wondering ........if I ever did need to replace the 12.5 HP Kaw on this 36" Deere, with the 17HP Kaw off my eXmark Metro HP, what other options would I have to fit the eXmark? If I ever had to spend money on another one, I'd like to have the most power that would mount right up to the eXmark.

[lawrence stone]

IMHO a 22 hp Kohler command would have the most HP.

But I would buy a 20 hp Kohler magnum as MY first choice.

Magnums have more cubic inches, but burn more fuel per hour and run cooler=longer lifespan.

The commands are CARB certified and setup too lean for my tastes.