Firecore Performance is known for their industry leading spark plug wire technology.With its superior heat resistance, and design that reduces electrical noise. These are a homerun for todays EFI and highly sensitive electronic componentry.
These 8.5mm wires are black in color and made to work with stock TRUCK style coils and other coils moved higher on valve covers or from factory location.
These are the longer of the two style LS stock coil location wires.
Overall length is 13" from end of boot to end of boot.