Currently I have the tips with the rubber flappers. It sounds pretty good for a bone stock 7.4 but I'm wondering if I went with another style straight through stainless tip without the flappers, if it would sound better and be a little louder?

You should start thinking about tips with mufflers , noise tickets are written with regularity these days ...

Are people running around with decibel meters checking peoples boats?

Yes , out here in Ca and AZ they are ! park rangers in particular .

These are pretty trick exhaust tips by X Power Drive. Carbon bodies with billet tips. They can come with or without mufflers, and the mufflers are removable when you wish.

sharp!

Damn that Sucks! Am I going to have problems at Havasu with a 500 EFI CMI headers and no mufflers?

Where do u boat? Although an isolated case, I haven't had any issues in Ca or Az so far (knock on wood ) or seen/heard anyone else being pulled over for noise!!! And mine is pretty loud

Very "tech-y". Cool!

I got a noise ticket on Mead a few years ago coming out of the launching area. He also told me that they don't allow switchable exhaust either. LOL Haven't been back since but probably will this year. I'm going to expect a ticket this time.