Even at idle it seems to make a diff to me. And aside from the smell the noise from the engine exhaust is reduced considerably! Even if it didn't reduce the fumes I would want it just for the reduction in noise alone. Great product and work every penny.
I had a question related to this. I'm more concerned with the noise, does a turndown exhaust help with the noise while at speed? And with a turndown exhaust do you need the exhaust flaps or do you have to worry about that? Just wondering, sorry it's a little off topic but I didn't see the need to start a new thread.
I'll throw in here too. FAE is awesome. We surf mostly, and the fumes are totally gone. The loud V8 is totally quited down so you can talk to the surfer and actually the in-boat speakers are adequate for surfing music.
You're right, there is very little different when in neutral. The major difference is when you start moving.
I seriously think the FAE is probably the best upgrade (among many) that I've done to my boat.
And for Larry's latest option ... Quick release mount if you need to take swim
platform off etc.
And what others have already said - I don't need to be the loudest boat on the lake except if it's my tunes