Drop in Tuner Replacement? Advice needed

Hello!

I have a 2010-ish Weber Special edition (f) and it sounds absolutely fantastic -- but I would like to look into a Tuner Upgrade or Replacement. Are these mostly a drop-in replacement? Are Waverly's an option for a drop-in replacement?

I'm not 100% sure what's on there now, any way to ID?

Thanks!

They look like Grover -- worm unders. Based on the pattern....

Ask Bruce Weber. Montanalutherie.com