mafless question
 

Getting a 2.1 stroker built for me and they will hopefully have it shipped to me within the next month.
I currently have a 1999 subaru impreza turbo uk model running a 2004Sri bottom end and standard ver 5 heads.
The engine that is going in is a cdb 2.1 stroker engine with jdm big port heads.
My question is is it easy to go mafless ?
I have a simtek ecu ready to go on so am sending it to the engine builder to put a safe map on it for when my engine gets fitted.
Basically I am in jersey and no one does proper mapping over here.
Is there any wag to map it without having to come over to the mainland and is it easy to program it to mafless ?