I currently have a dual series flowmaster on my 04' 5.4. Im trying to buy a header system for it i hear gibson is the one to choose. but i have two problems

One: I'm not exactly sure which system i should get( should i just get the headers or should i buy the pipes too( im getting cutouts also), the local shops will probably charge me an arm and a leg to bend pipes so im kinda stuck.)

Two: im going to supercharge my truck later on so do i buy a specific header or are they the same.

Sorry to be the newb but i need the help TY in advance.