Moroso 73749 Ultra 40 8.5mm Spark Plug Wire Set - Universal GM LS Coil Compatible

The Moroso Ultra 40 8.5mm spark plug wire set delivers high-performance ignition for GM LS engine applications with coil-near-plug ignition systems. These universal-fit wires feature 8.5mm diameter construction with a spiral-wound conductor core that provides excellent spark energy delivery while minimizing EMI/RFI interference with vehicle electronics.

Key Features:

• 8.5mm ultra-low resistance spiral core for maximum spark energy
• Black sleeving with high-temperature silicone jacket rated to 600°F
• Universal kit includes 90-degree, 135-degree, and straight plug boots for custom fitment
• Designed specifically for GM LS engines with individual coil packs
• Kevlar core construction resists heat and abrasion
• Premium brass and stainless steel terminals ensure positive connections
• Suppresses electromagnetic interference (EMI) to prevent electronic component disruption

This universal wire set allows builders to create custom-length wires tailored to their specific LS engine installation. The variety of boot angles ensures proper routing in tight engine bays while maintaining adequate clearance from headers and other heat sources. Moroso's Ultra 40 series represents a perfect balance of performance, durability, and value for street and racing applications.