JDM gte help
 

ok... so my engine will be here in a few days but i heard a few rumors... first, do i need a jdm ecu, and if so where do i get one? 2nd, if i bought an a/t ecu would it work without the egr? i heard that it would run lean unless i had jdm ecu or installed the old one from mine. but when i removed mine from my n/a it ran fine.... what other nightmares will i run into?