u/Awkward-Angle-6602

Getting new tires for the first time on my 2008 LX I bought last summer. Also just hit 150K this week :) !! But I was able to get a good-ish look at everything with my own eyes... Are these my rear trailing arms? And if so, they look good right? Or should I be looking more at the mount of it?

Also, what's the box behind the left rear arm that has that honey comb design? The EVAP?

Looking at getting an adjustable camber arm for the rear because I feel like the tire sag is getting more prominent and the right seems worse? But it might be an optical illusion with the mud guard being caddywhompus there.