Car's current spec is 94 Black Top 180sx-

Induction
Front mount
Garrett Gt2860r
Standard s15 Actuator
Decat
Cat Back Exhuast

What i have planned-

Apexi Power FC
Walbro 255 pump
Fuel Pressure Regulator

What else do i need before i get it mapped? As i do not want to be told i need something else after i spend alot of money on Mapping because it'll have to be Mapped again..
I'd rather have everything then head for mapping!

All Info greatly Recieved..