For sale: a set of spark plug wires of very high quality, much better than ACDelco in the market and MSD, with specifications I specified for the factory, 10.2mm size, 8 wires (V8) with integrated insulation/excellent heat insulators (especially with headers). High quality + RFI noise reduction and direct installation. Specifications: • Quantity: 8 wires (V8) • Thickness: 10.2mm (Spiral Wound) • Kevlar core + RFI Suppression • Heat-resistant silicone boots + Heat Sl Installation: Fits many GM cars with LS V8 engines such as: GMC. Yukon. Caprice. Sierra. Escalade. Denali. Corvette. I give you a one-month warranty, if anything, you get your money back. 290 SAR