Need help with quieting this beast down.
 

Don’t get me wrong. I love a big motor with raw nasty sound. But......family would like to call have a conversation without headphones on. So, what are the best options? It’s a 598 with thunder n lighting exhaust manifolds. I measured it today at 102db. I would like it to be in the 80’s range.

If you can find a set of GGB inserts they work great with no power loss, and you can still add clamp ons to the tail pipes if need be.
Im in a similar boat (Badabump!). The lady is envious of the ski boats that crawl up to the dock;)

I went with the 12” GGB inserts and all is happy. It’s more of a deep throated growl now.

Anybody have any for 4” tips? Thanks

You could also go with turn downs

https://teaguecustommarine.com/teagu...-turn-it-down/

I changed from Corsa muffler tips to turn downs after repower. Its loud while running but quite at the dock

I need it quieted down at cruise speed

simple and effective

Stupid question, do the Gibson bullet clamp ins just go over my existing tips?

Muffler inserts with turn downs :D

Yes. Put a set on my 525 boat and they were still plenty load while running but reduced the rap and harshness at idle.