Taylor 8mm Spiro Pro Ignition Wire Set Features: Available For Street Or Track Applications Spiro-Wound With Stainless Steel Wire Covered With A Conductive Fluorocarbon Material Provides More Fire Power To the Spark Plugs OEM Resistor Core Wires Eliminates Radio Frequency Interference Two Layers Of 100 percent Pure Silicone Height: 10.00 Width: 11.50 Length: 3.00 Weight: 1.30 lbs Fitment: 2011/Chevrolet/Silverado 1500/XFE Crew Cab Pickup 4-Door/5.3L 5328CC 325Cu. In. V8 FLEX OHV Naturally Aspirated::N/ A^^2011/Chevrolet/Silverado 1500/WT Standard Cab Pickup 2-Door/5.3L 5328CC 325Cu. In. V8 FLEX OHV Naturally Aspirated::N/ A^^2011/Chevrolet/Silverado 1500/WT Standard Cab Pickup 2-Door/4.8L 294Cu. In. V8 FLEX OHV Naturally Aspirated::N/ A^^2011/Chevrolet/Silverado 1500/WT Extended Cab Pickup 4-Door/5.3L 5328CC 325Cu. In. V8 FLEX OHV Natur...