Anyone running clamp on silencers? How do they sound?

The sound will vary depending on what engines are in the boat and what brand of mufflers are being used.

I have Gibson clamp ons, they take the harshness out. Boat still sounds menacing just not ear piercing. I have a fairly built motor and without them I can drown out a good thunderstorm. I do a lot of river cruising and they make it very tolerable.

I have a pair of ggb clamp on mufflers. Which I thought they sounded good. Gave it a nice little deeper tone. Plus I like the way they look. I think they only do inserts but worth looking into. Also just remembered they worked with dry exhaust.

I bought a set of Aqua Power as well , actually bought 2 sets to get the one set I wanted as the price was spot on. Have the other set in Swap Shop.

How do you get your Gibsons so shiny? Mine are getting dull after 10 years.

GGB for sure .