These high qualiy spark plug wire cable splicers from NGK will allow you tosafely splice a new set of wires into your existing OEM stock coil.  Many older OEM coils do not have removeable ignition wires, if they ever become bad you typically have to replace the entire coil assembly.  With the NGK spark plug cable splicers you can simply splice in a high performance cable set like the NGK Type CR1 (8035) or CR2 (8048).  Not only will this provide better performance over stock ignition cables but will save you money by allowing you to keep using the OEM stock ignition coil.