As above 1991 RB20det ignition module.
The little black square box on top of coil pack cover at the back of engine.
2 plugs,left one 7 pin orange Right 6 pin yellow.
Left front corner letter "c" with 1,2,3,4,5,6,E.
Right Front corner "b" with 1,2,3,4,5,6.
As I have been told there are several types?
Any info also would be great cheers.
Will pay freight need this urgently.