Ok, I want to purchase Jet Hot Long Tube Headers and run it through a Dynomax or Hooker Catback. When purchasing this item, what else is mandatory for a full install? I want to run this setup...

Jet Hot 1 3/4 Primary Long Tube Headers
Jet Hot Y
High Flow Cat
Hooker/Dynomax Cat

I know theres bolts, flanges, etc that are required, but else is there that I need? O2 sensors I think are also mandatory, but unsure, any further explanation would be appreciated, thank you.

 

some good gaskets?
maybe some felpro or something for the headers and the y-pipe-cat connection

if your O2's are working, no need to replace imo
i'll add one thing besides gaskets though
somebody to help do all the work with

 

look here