TSP’s premium ignition wires are designed for superior performance and durability. A spiral-wound Kevlar® core suppresses RFI (radio-frequency interference) and features 500 ohm per foot resistance for excellent performance. Around the core is a fiberglass braid which provides superior pull strength. The outer jacket is composed of premium high-density silicone rated at 450° F and features a quality gloss finish to resist damage from water and chemicals. This set is not assembled but comes with LS-style terminals for a universal fit.