Where can I get the most powerful 1503 4-Tec Rotax engine?

Where can I buy a turnkey engine / setup with the most horsepower possible from a 1503 4-Tec Rotax engine? I want to replace my sport boat engine with something with more power/balls…

I see all these mods, and kits, but is that the best way to go? Is there just a bolt in single solution?

There really isn’t a turnkey solution like you see in the outboard/marine world.

We can certainly build something…shoot me a PM if you are interested in going that direction.

Man if you really want a fast engine you have to buy a turbo charger only to get engine the way you want it . Bust out your wallet