Review on 🔌 Enhanced Denso 671-8110 Ignition Wire Set for Improved Performance by Johnny Bloomer

I fitted these to my 2001 Ford Expedition 5.4L along with a set of new spark plugs and they fit perfectly and work great. A significant increase in performance and the engine runs more smoothly. My old boots had water and rust and didn't seal well around the spark plug holes, allowing water and dirt to get into the top of the spark plug causing misfires and loss of power. These boots squeezed the holes tightly, so they should be much better at keeping water out, which is a major cause of misfires on these fords.