MSD Super Conductor Spark Plug Wire Set – 1999–2013 GM Truck & SUV (LS-Series)

MSD built the Super Conductor Spark Plug Wire Set to give your 1999–2013 GM truck or SUV maximum ignition performance with zero compromise on reliability. Designed for LS-based engines, these custom-fit 8.5mm wires feature ultra-low resistance and superior EMI suppression—making them the perfect upgrade for high-performance street or off-road applications.

Each wire uses a copper alloy spiral core, delivering just 40–50 ohms of resistance per 11-inch wire—the lowest of any helically wound wire available. MSD winds over 40 feet of conductor into every foot of wire, tightly wrapped around a ferromagnetic core that acts as an EMI “choke” to block interference. That means more spark energy reaches the plug, and sensitive onboard electronics stay protected.

The outer sleeve combines high-temp silicone and synthetic materials for excellent resistance to heat, abrasion, and tearing. MSD finishes each wire with dual crimp terminals that secure both the conductor and sleeve, ensuring long-lasting, high-integrity connections.

Key Features:

• Designed specifically for 1999–2013 GM trucks and SUVs with LS-based engines
• Delivers extremely low resistance (40–50 ohms per wire) for max spark transfer
• Features ferromagnetic EMI suppression to protect vehicle electronics
• Includes 8 pre-cut 11-inch wires for a direct bolt-on installation
• Constructed with a copper alloy spiral core for top-level conductivity
• Finished with dual crimp terminals for secure, high-durability connections
• Wrapped in a durable, heat-resistant silicone/synthetic outer sleeve
• Red or black 8.5mm wire jacket with gray straight boots for a clean, high-performance look