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:anyone know if the 20v coils will hold up to 20-25 psi? same coils as s13 det??? thinking of running a ve (20v) with 8.5 comp., jgy37R,740 inj,an autronics
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.