I just pushed a new version of FMOD to the team to test. I gave myself a few days break from FMOD to allow my ears rest. If all testers give great feedback this will be in the next update. Props are louder, engine meatier, internal sound much much louder and reworked a bunch of other features, like the annoying trim wheel with autopilot and the ground interaction sounds like tire skids, touchdown, bumps, rolling, braking and the loud nosewheel on this plane. It's all been looked at, scrutinized and awaiting feedback.