8 Pack Straight Boot Ignition Coils 15% More Energy F-150 for Ford Lincoln Mercury V8 V10 4.6l 5.4l 6.8l Compatible with DG511 C1541 FD508-Upgrade (Yellow)

Works very well and fitment was perfect.

These coils and plugs are an amazing deal they are functioning amazingly

Just installed these. No more miss fires! Immediately noticed an uptick in power and acceleration. The spark plugs that came with seemed well made. Items were surprisingly well packaged. Hopefully I won't need to do my spark plugs again anytime soon, But if I did, I'd buy these set again. Great price!

So glad i ordered these! Worked great, truck started right up! I will increase to 5 stars after running them for 2 weeks. Price is so amazing I was skeptical but the most problematic vehicle i ever owned is running !

nice looking with a good kick in the HP and so easy to see and install.

After misfires and codes, decided to change out the plugs and coils on our 2008 Ford Expedition 5.4L V8. Motorcraft coils were $40 a pop. Read a lot of reviews on these coils and decided to try them out. Packaging is A+++++++, these things come in a box with individual cutouts for each coil, the presentation is great. I chose black to match the OEM coils and to not appear flashy and aftermarket. The coils themselves appear OEM with the exception of the sticker on them. I was worried when I pulled out my coil and found I have the new "brown boot" coil and new spark plug design, but had read questions here about that and they said the coils will work. Watched a few YouTube videos to know what I was doing. Each coil held on with a 7mm screw. Took my time, took of each one, blew out the hole with compressed air, pulled out and replaced each plug. Put a dab of dielectric grease on the end of these, and installed each out. Ran the motor after each one to make sure they were firing. The back coils were difficult to get to, but if you take your time it is not that hard. Engine no longer misfires, no codes, back to normal. Not sure if I will see any performance improvement, or fuel economy increase- does not feel like I have any more power, but everything is back to smooth running. Love the fact these have a 2-year warranty, and from what I have read, they pretty much will just replace your entire set f one fails- and in my book you can't beat that kind of customer service. Very happy with this purchase, and would certainly purchase again. Love the way under the hood the truck still has the OEM look- can't even tell I replaced the parts other than these new coils are nice and shiny and clean!

These coils work well and fuel economy is up too. Easy to replace and fit great.

Didn't fit after it said it would