Michigan Motorsports LS Truck Spark Plug Wire Set — Black 10mm Performance Wires, Spiral Core & 90° Boots

Michigan Motorsports’ 10mm black LS spark plug wire set is a direct-fit, high-temperature ignition upgrade engineered to improve spark delivery and EMI suppression for 4.8L–6.2L LS truck and SUV engines.

These pre-terminated wires are built for Gen III/IV LS platforms found in Silverado, Sierra, Tahoe, Yukon and Escalade models from the late ’90s through the mid‑2010s. The kit combines a spiral-wound suppression core with a silicone outer jacket and 90° boots so you get a stealthy appearance, reliable high‑temp durability, and easy plug-and-play installation on stock or aftermarket coils.

How do these wires affect ignition performance?

Upgrading to a thicker 10mm wire with a spiral-wound core helps preserve spark energy while cutting down electromagnetic interference. That can translate to crisper throttle response and a more stable idle, particularly on cammed or modified LS engines that demand consistent spark at higher loads.

• 10mm diameter for improved energy retention
• Spiral-wound suppression core reduces misfires and noise
• Better spark delivery under load for modified engines
• Smoother idle and more consistent throttle feel

Will these wires fit my LS engine and vehicle?

This set is engineered as a direct fit for many Gen III/IV LS variants including 4.8L, 5.3L, 6.0L and 6.2L platforms. Applications include common truck and SUV V8s—models such as LM7, LQ4/LQ9, LY6 and similar engines used in Chevrolet and GMC trucks and full-size SUVs.

• Direct-fit terminations for LS coil packs and spark plugs
• Compatible with 4.8L, 5.3L, 6.0L, 6.2L engines and many Gen III/IV blocks
• Designed for stock or aftermarket coil packs
• Fits many Silverado, Sierra, Tahoe, Yukon, Escalade models

What materials and construction ensure longevity?

The wires pair a high-temperature silicone outer jacket with a robust spiral core to resist heat, oil and vibration while maintaining signal integrity. Durable 90° boots are molded to prevent moisture intrusion and provide secure connections to coils and spark plugs.

• High-temp silicone jacket for heat and chemical resistance
• Spiral-wound suppression core for reliable spark transfer
• Molded 90° boots to protect connections and ease routing
• Pre-terminated ends for consistent, repeatable fitment

How simple is the installation process?

Installation is generally straightforward because each wire is pre-terminated for LS coil packs and spark plugs, minimizing trimming or crimping. The factory-like routing and snug boots reduce installation time and help retain original engine bay neatness.

• Pre-terminated ends eliminate extra assembly steps
• Factory-style lengths and boots for tidy routing
• Plug-and-play fitment on stock coil packs
• Works with many common aftermarket ignition setups

Who is this for? The Michigan Motorsports LS Truck Spark Plug Wire Set is ideal for owners of LS-powered trucks and SUVs who want a dependable, OEM-friendly ignition upgrade. If you drive a Silverado, Sierra, Tahoe, Yukon or Escalade with a 4.8L–6.2L LS engine and want improved spark stability, reduced EMI, and a clean black appearance without complex wiring changes, this kit is a practical, performance-minded choice.