This harness is to fit NON vvti 2JZ-GE cars with the stock engine harness.
It will be best used in conjuntion with the DUAL CAM and crank trigger kit. 
 
This harness deletes the stock igniter and plugs into your existing igniter plug. The signal wires are then pushed into the back of the ECU connector for FULL plug n play. 
 
It must be used with an after ECU that uses a plug n play connector, most of them do.
 
This harness is to run FULL SEQUENTIAL C.O.P. ignition