The e-core design of the HVC Coil is more efficient in producing more output with less loss. MSD 6 HVC Coil must be used with MSD 6-HVC ignition. Coil; MSD 6 HVC; must be used with the 6 HVC Professional Ignition.
MSD Performance 8250 6 HVC Ignition Coil
MSD Performance 8823 Vibration Mounts MSD 6 Series
MSD Performance 8243 Coil-On-Plug Ignition Coil Ford 4.6/5.4 L 04-08
MSD Performance 8800 Vibration Mounts MSD-7 Series
MSD Performance 8851 Helicore Accessories