As with most these ECU tuning..
TALK to your local tuner and go by what he's familiar with..
OR pick an ECU company [Google search] check their dealers in your area and talk to him ..
Check what work / tuning he has done..
Don't be afraid to use Australian or New Zealand ECU's as down this end we have developed some VERY good engine management systems..From using ex Jap engines etc.. With dealers agents around the globe..
Motec, Haltech, EMS, Microtech, Link, Autronic etc...