If you're running headers with close tolerances or have an engine bay with little room, Proflow's ceramic ignition lead wire sets are the cure for burnt and melting boots. Their ceramic coating acts as a heat mirror, reflecting infrared energy and heat away from the plug boot--and it's engineered to resist flaking and peeling. The 8.8mm spiral core silicone wires deliver maximum energy to the spark plugs with built-in RFI suppression for your street-driven vehicle. These wire sets are true performance upgrade replacements for OE types--and also affordably priced. They're available with different terminal and boot ends for fitment on a range of vehicle applications.