MSD Ignition 31659 Super Conductor SPARK PLUG WIRESupc : 085132316595 mpn : 31659 distributor terminal ends : Socket brand : MSD Ignition number of wires : 8 spark plug boot color : Gray spark plug boot ends : 90 Degree wire material : Silicone and Synthetic manufacturer warranty : Manufacturer's Warranty diameter (mm) : 8.5 Millimeter assembled : Yes distributor boot color : Gray includes coil wire : Yes california prop 65 warning : This product can expose you to chemicals which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information visit www.P65Warnings.ca.gov manufacturer part number : 31659 distributor boot material : Silicone and Synthetic spark plug boot material : Silicone and Synthetic conductor type : Copper Alloy With Ferro Magnetic Impregnated Center Core wire resistance : 40 To 50 Ohms Per Foot Resistance rfi suppression : Yes