New bunks - got rid of the split 2x4's and replaced with 2x6's, new carpet, and stainless hardware. I also had them extended back ~1.5-2" to give the transom more support. I always thought the original bunks were too short on the back.
I also had the two outboard bunks extended up to the front crossmember, requiring the fabrication of additional brackets. I had some gel coat cracks at the front end of one of the old bunks because they were just too short for this much boat.
Polk DB651's - I sat on these for a year because I didn't think the gray grilles would look right. So I painted them.
The separate tweeters are no longer connected, they're just acting as hole covers at this point. At some point I'll probably take them off and have my fiberglass guy fill the holes. However, they don't look as bad as I was afraid they would.
Finally, every light on the boat and trailer is now LED, except for the bow light which I know everyone is sick of hearing about. But my courtesy lights, stern white light, and the light in the head are now LED. After 5 years, I feel I'm getting close to being done replacing and changing things on this boat.
Unfortunately it won't be getting wet right away; here's our lake, 7' high as of today. The ramp is out there next to the tall light.
Courtesy dock: