Thunderbolt V Hi-Energy Ignition and platinum-tipped spark plugs ensure reliable starts Dry-joint exhaust eliminates the chance for water to enter engine through leaky gaskets Water-separating fuel filter helps protect fuel system and engine against damage Industry-exclusive 3-year limited corrosion failure warranty Proven GM cast iron block V6 or V8 power for years of reliable operation Ceramic coated exhaust elbows resist temperature and corrosion for long life Serpentine belt system for longer belt life