I've been trying to find 5" inch exhaust tips and I can't seem to find anything. Anybody know?

I'll check that out thanks. Anyone else?

Is that a muffler set up or just plain tips? I'm looking for tips.

Have you tried Rexx Marine
http://www.rexmar.com/page230.html

Here take a look, otherwise call Stainless Marine they can make them if they do not have them!

Res and IMCO

Stainless Marine in Miami can make you whatever you need. 305-681-7893.

I looked at rex and imco, at least on the website. I'm looking for 5" i.d. tips. Is stainless marine pretty expensive?

HERE IS THE ANSWER YOU`VE BEEN WAITING FOR:

I bought my 5" tips from CP Performance. They are polished stainless. They had to make them, these are not an "on the shelf" item. They are 13" overall with 5" on one side of flange and 8" on other. They are cut with a 30* slant and have internal "burn-proof" flaps. I received them 2 weeks after I ordered them. Cost was $145 each.
I`m sure they can be made to your specs. I`ve had them 2 summers and they still look new after a little spit shine.
By the way, this was the least expensive place I found at the time. I buy plenty from them, they usually offer the lowest price on marine performance parts.
Hope this helps!
Donnie

5" diameter

Stainless Marine, they will get you what you need.