Are there any write ups on a 4GS catback install? Just wondering before I dive in. Or any tips from someone who has done their own install?

 

I haven't done a 4GS but from my previous experiences with bolt on catback exhaust, it should be pretty straightforward.

best to lift the entire rear end off the ground rather than one side.
I like spraying the hangers with WD40 to make it easier to slip off, and a nice long prybar (or 2).
the 4GS is pretty new, and you're in FL which shouldn't see much metal seizing but even for me in CA I still like to shoot some PB blaster in the nuts/bolts to help with loosening.

 

If you have a lift and tools your good.