Many pwc enthusiasts were wondering whether it is possible to fit an Ultra 250X engine on a 15F hull. The answer came straight from the R&D Department, of KMC, the people that designed the new Ultra engine. Therefore, the new engine is much bigger than the previous one and it has a different exhaust layout, so it is actually impossible to fit it in the narrow engine compartment of the 15F hull. Though, even if it was possible to fit the Ultra engine, the 15F hull utilizes a smaller pump, so it would have been a waste of horsepower. It will be easier to buy a new craft and get the advantages of the complete package rather than spending a lot of money to modify the original 15F hull.
