10.2 MM Racing Spark Plug Wires – LR4 LM7 L59 LS V8

Unleash Every Cylinder — Maximum Spark, Zero Compromise

Your LS V8 deserves more than a stock ignition wire that robs horsepower and misfires under load. Cable Master's 10.2MM racing spark plug wires deliver a full-voltage, low-resistance spark every single time — so your engine breathes, pulls, and performs exactly the way it was built to. Whether you're hauling heavy on the highway or pushing hard on the track, these wires keep every cylinder firing in perfect sync, mile after mile.

⚡ Key Benefits

• Kevlar-Core Construction — Resists stretching and breakage for long-term durability under extreme engine vibration.
• Nickel Wire-Wound Conductor — Delivers maximum voltage transfer for peak horsepower and throttle response.
• Double Silicone Jacket + Fiberglass Layer — High-tear-strength insulation handles extreme heat and protects against electrical shorts.
• Superior RFI Suppression — Shields sensitive electronics (ECU, sensors) from ignition interference.
• Premium Silicone Boots — Ultimate high-temperature protection at the plug and coil ends.
• Direct OEM Fit — Engineered specifically for GM LS-based Gen III/IV engines (LR4, LM7, L59, L33, LQ4, LQ9); no modifications needed.

⚠️ Disclaimer: Always verify fitment against your specific vehicle year, make, model, and engine code before installation. Professional installation recommended.

🔧 Built for the GM LS V8 Enthusiast

You bought a truck or SUV with a GM LS V8 because you needed power you could count on. Over time, worn ignition wires quietly steal that power — causing rough idle, poor fuel economy, and sluggish acceleration. Cable Master's 10.2MM racing wires are engineered from the ground up for the LR4, LM7, L59, L33, LQ4, and LQ9 engine families found in 1999–2007 Silverado, Sierra, Tahoe, Suburban, Yukon, Escalade, Avalanche, and H2 platforms. With a Kevlar core, mag-wound conductor, and dual silicone jacket, these wires restore the crisp, confident ignition your engine was designed to deliver — and keep it there for the long haul.

📋 Product Specifications

🛡️ Our Promise to You