Put your mufflers on my Twin Engine Blown cat. Took it out yesterday and tried it, It works great!! Had my 32 pitch props on, took it up to 5700 Rpms using B maxs with 130 ratio and the read out on the gps was 110.9..And that was with 4 people and over half full of fuel. Still dont know if Michigan and wisconsin will except the noise but it should be close. No wake area- great, but dont know about the higher Rpms. I 'll let you know soon.