[scoobster]

I have come across an R33 GTR ECU that has some kind of Jap performance chip in it, it's hard to make out whats on it but looks like:-

H or could be M EC RS80
STI # 7 or could be 9 02

Anyone know what the chip is?

 

[scoobster]

Right i now know it's MEC R580 as that matches the ECU Code but does anyone know what the STI#702 means?