I have the OMP Katana 40 size profile (very similar to Mojo) and an ASP XLS 52 with Tower muffler. It is veeeery powerful, swinging APC 12-4 at 14700 peak when fed 30%, but to reduce noise I now use a Hawk wooden (wide blades) 13-4 at 11700 peak and it is great power for my profile, and quite silent too.
This performed so well that a friend of mine flying the very same plane with a Saito 80 also bought an XLS 52 and now runs the same setup as I do


He commented that he now uses alot less fuel than when flying the Saito