How do ya remove? (this trim)

if you have room -- use a small wire brush to scrape the debris/grime off the gt studs-- take your time-- spray them with some lube & you might get lucky not breaking the pot metal studs. act like your tapping threads -- loosen a few threads -- wire brush/ spray-- tighten back up-- loosen a few more --repeat.

on your cat whiskers the front & back(maybe just back) has a small screw-- the rest are just clipped in place--- I've never had good luck trying to save these -- so just plan on destroying them-- remove screw & pry away-- they come off fairly e-z.

do not know about the emblem-- but if you could get to the back & put a flat blade & smack that it might come out.
If all else fails use inkjunkie's last suggestion
Lawrence