If they are the same coils as the S13 DET I believe they won't make it much farther than 275whp. If they are the same coils as the Spec V, I don't believe they will make it much farther than 300 whp, in fact I'm gonna find out for sure about the Spec V coils in the next month or so.madddjack said:
If they look the same as the S13 coils then you could probably upgrade to the Splitfire replacement coils, that's the plan for the Spec.