Upgrade your engine's ignition system with these high-performance 8.5mm 9-inch GM LS1 LS6 ignition wires. Designed for General Motors LS1 and LS6 engines, these wires are constructed with durable materials to withstand extreme temperatures and vibrations. Measuring 9 inches in length, they provide a perfect fit for your specific engine configuration. Featuring a spiral-wound Kevlar core that suppresses radio-frequency interference (RFI) and 500 ohm per foot resistance, these leads ensure excellent performance. A fiberglass braid surrounding the core provides superior pull strength, while the outer jacket is composed of premium high-density silicone rated at 232 C. Included are male and female boots with appropriate terminal ends.