Superstock ignition coil 80102013 is tested and exceed OEM performance requirement, it's a direct OEM coil pack replacement.

SuperCoil, Ignition Coil 80102009; Primary Resist 1.0 Ohms; Secondary 12.7 k Ohms; Turn Ratio 76:1; Max Voltage 42000V; Yellow

SuperCoil 80102008, Ignition Coil; HEI In-Cap Design; Primary Resist 0.5 Ohms; Secondary 8.6 k Ohms; Turn Ratio 80:1; Max Voltage 45000V; Red And Yellow Primary Wire; Red

SuperCoil Ignition Coil 80102010; Primary Resist 1.0 Ohms; Secondary 12.7 k Ohms; Turn Ratio 76:1; Max Voltage 42000V; Yellow