David H

hi all Some quick question here , I own a 2008 WRX STI , 10th generation , engine replace with Cosworth , looking forward to tune it. Now I wonder since there are 2 ECU type , G4X and G4+ , and I can see there more product under these 2 type , which one is recommend? What is the real difference between them? Any feedback will be appreciate. Wish you have a great day. BTW , if I am consider use a used Links computer , is there anything I need be aware of ? I mean is there any function or configuration can be locked or encrypted , and prevent me from using it?