SR20DET ECU

E5 is from a 94-96 180sx black top 5 speed

E6 is from a 94-96 180sx blacktop automatic

WC is from a 94-98 S14 Silvia

62 is from a 91-93 180sx or S13 Silvia 5 speed

61,63 is from a 91-93 180sx or S13 Silvia automatic

J4 is from a 97-98 180sx Type X 5speed