Review on High Performance Curved Boot Ignition Coil for Ford F-150 Lincoln Mercury 4.6L 5.4L V8 - Bravex Compatible with DG508 C1454 C1417 FD503 by David Caldwell

Bought these for my 2005 Ford Crown Victoria Police Interceptor. I watched a video on YouTube, installed it for myself and saved a few hundred. I also bought new Motorcraft spark plugs. They work. same for me, i don't feel any real difference in performance or anything. Driven 500 km so far without any complaints. Although they were a few millimeters longer than my originals, they still work, making everyone smile here. I got the code for the #4 spark plug so why not just replace them all including the spark plugs and ignition coils. Great purchase and I recommend.