Decat pipe help needed

[Jono FD3]

Hi everyone, just bought a standard 1993 Jap import FD3  but I\'m new to this spinning rotor motor!
I have heard a few horrer stories about decating leeding to boost problems could anyone throw some light on the subject for me?

If I can decat without mods, I was going to make my own but keep the heat probe and the air pump feed, would this help the running of the motor or would I be better off binning them?

Thanks for your help,
Jono