Black 8.5mm Spark Plug Lead Set Fits GM LS2/3 engines 12" length

Upgrade your GM LS2/LS3 ignition with the Xpro 8.5mm Spark Plug Lead Set — a precisely engineered 12" length designed to fit LS2/LS3 configurations and deliver consistent sparks and reliable starts across the RPM spectrum.

• 8.5mm spiral-wound copper conductor for resilient conduction and flexible routing under the hood
• High EMI suppression to protect sensitive ignition and electronic systems from interference
• Low resistance at 40–50 ohms per foot for strong, reliable spark delivery
• 12" length tailored to LS2/LS3 engine layouts for a clean, OEM-like fit
• High-temperature silicone sleeves and boots that withstand under-hood heat and harsh conditions
• Outer cover available in red or black to match your build aesthetic
• Engineered for enthusiasts who demand performance and longevity, providing a robust upgrade over factory wiring to maintain ignition performance under load and across temperatures

This lead set is built to endure demanding performance environments, helping you achieve consistent ignition across a range of driving conditions—whether you're tuning for horsepower, reliability on hot days, or hard acceleration at higher RPMs. Choose Xpro for LS2/LS3 compatibility and a wiring upgrade that emphasizes durability, heat resistance, and dependable starts.