Legacy Ignition manufacturers Spark Plug Ignition Wire Sets in the USA. Our 8mm wire sets with a suppression core are the perfect combination of OEM reliability and aftermarket performance. The upgraded 8mm insulation jacket provides more performance and heat resistance than stock 7mm wires. The suppression core adheres to the OEM requirements, suppressing unwanted electrical interference to electronics and radio frequencies. The 1,200 ohms per foot conductor resistance is significantly lower (better) than OEM wires and is a proven performer in street cars, while still being affordable. ​

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