Moroso 73621 Ultra Race Spark Plug Wire Set - 40

The Moroso Ultra 40 Race Wire delivers superior ignition performance for high-performance and racing applications. Engineered with advanced materials and construction techniques, this spark plug wire system provides maximum spark energy transfer while maintaining excellent EMI/RFI suppression for clean ignition signals.

Key Features:

• Nickel Copper Alloy Conductor: Provides excellent conductivity with minimal resistance for maximum spark energy
• Ferrite Impregnated Core: Effectively suppresses electromagnetic interference while maintaining low resistance
• Kevlar Center Core: Adds exceptional tensile strength and durability under extreme racing conditions
• Conductive Polymer Coating: Ensures consistent electrical properties and prevents voltage leakage
• High Temperature Silicone Jacket: Protects against heat, chemicals, and abrasion in demanding engine bay environments
• Locking Stainless Steel Terminals: Secure connection prevents accidental disconnection under vibration
• High Temperature Silicone Boots: Withstands extreme heat while maintaining flexibility and seal integrity
• Fold Over Crimping: Professional-grade terminal attachment ensures reliable electrical connection

Ideal for racing engines, modified street performance vehicles, and any application requiring reliable high-energy ignition under extreme conditions. The Ultra 40 construction balances low resistance with effective noise suppression, making it suitable for both carbureted and fuel-injected engines with electronic management systems.