what pack/ flash should i use on JB4

[Tweddle]

Hi,

I have read through many didn't forums and pages regarding this and seemed to have got myself more confused

I am currently running various mods on my 1M
Wagner Decat
Miltek Primary cat back
BMS DCI
Forge FMIC
CP-E charge pipe with tail BOV

I'm picking up a JB4 G5 this weekend, I have found on the VRSF I can get a DP fix and I am going to order the delimiter for the JB4.

I have read numerous post about Backend Flashing is this something I would need to do?

Would there be any benefits with the mods I have and if so what flash would I need?

I am not planning on running meth!

any help would be much appreciated

thanks
David