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There are 2 Splitfire types for the R33:

SF-DIS005 RB25DET

SF-DIS008 RB25DET 6/97 onwards

The difference between the RB25DET series 1 and series 2 Splitfire coil packs are the igniters. The series 1 have separate igniters, where the series 2 are built in.

This should answer your question.

how do i tell if the SII have igniters in them? and if i put them in my SI woul dit work

The ignition system was changed with the Series II. The ignition module was no longer located on the cam covers and was instead replaced by the improved ignition coils and ECU.

I believe you will find that the ECU is different as well as the ECU puts out a positive pulse rather than a negative of the usual setup. The ECU is different to that of the Series I to compensate for the different ignition system among other things.

As for determining the physical difference between the two packs I cannot say. I would suspect that the Series II would be a bulkier item than the Series I. If you had one of each I'm sure you'd be able to tell.

Sorry man, that's the limit of my knowledge......

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