Moroso 73837 Moroso GM LS Ignition Wire Set - Ultra 40 - Unsleeved - Coil-On - RedMoroso 73837 Moroso GM LS Ignition Wire Set Ultra 40 Unsleeved Coil On Red GM LS, LT Ignition Wire Set, Ultra 40, Universal, With Aluminum Shielded Spark Plug Boot Protectors, Red Wire. Wire Lengths 8 @ 48" Moroso Ultra 40 Race Wire is the standard in high performance ignition wire Optimized EMI RFI resistance Used in the highest level of racing applications, from dual mag Top Fuel Cars thru NASCAR Cup Series and more 7mm diameter wire with 40 ohms of