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