Featuring industry-best 8.5mm ignition wire with a low resistance at 25 ohms/ft, FireWire® plug wire sets maximize electrical energy flow to the spark plugs, providing the hotter spark needed in applications with upgrades like high-flow air intakes, custom programing and especially forced induction. An advanced reactive core wire design also provides electromagnetic “noise” suppression, so radio, computer and other important electronic controls run smoothly and without interference. Additionally, premium heat-sleeved wire sets are available that provide added protection from high under hood temps, 1200 deg. F rated.