Want to change the throttle controls on my boat. Thinking of either livorsi platinum or Eddie marine elite series. Any input would be helpful. Thanks

I upgraded from original/stock Kiekauffer/Merc controls to the Livorsi setup on my 37AT several years back. It was money WELL SPENT.
Most of those controls will integrate with the cable systems pretty much interchangeably, but you may need to do some throw adjusting.
Biggest thing: Make sure you look at the FOOTPRINT of the base, and the CUTOUT that is required. I had to have a small section reglassed and recut to make it all fit right.
Also, don't buy the color powerdercoat base for under the throttles that is an option for Livorsi. The powercoated base doesn't hold up.

Are you talking about the optional bezel or the actual base itself? What about the colored knobs? Do they hold up?

The optional bezel was what didn't hold up in my experience.
The knobs held up well, although I was ALWAYS waxing them because hand oils and sun lotions where always taking the shine off of them.

New throttle controls