Bravex 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 (Black)

I have a relatively new to me 2007 F150 5.4l 3V with 134k kms (82k miles) on it. which developed a failed coil and another @ 50% output. I purchased my black Bravex 8 pack coils and received them the day before my earliest suggested delivery date. IIRC 8 days from order. The coils are packaged well, look and feel higher quality than I expected.I removed the old coils and had an issue with a seized hold down bolt on #4 and further damage to the aluminum mounting wing/bolt piece, and ended up having make a special little bracket/hold down for that difficult to reach coil. I also chose to change my plugs not knowing if they had been done before. I studied the procedure from here and in particular the linked TSB from FORD. https://www.ford.samhaynes.com/sparkplug.htmlAs it happened a good decision since 2 - #7, 8 plugs were only finger tight and very susceptible to blowing out. They had been changed at some point to cheaper Champion plugs and looked like they had anti seize on the shoulders per FORD TSB so along with my extensive cleaning of the plug holes ( carb/injector cleaner, scraping with thin screwdriver and compressed air made removal much easier. No broken plugs that sometimes occur. I had 3/4 inch of carbon/dirt in the plug holes (up over shoulder of plugs). We installed new redesigned ( to resist breakage and carbon build up) Motorcraft plugs. Then installed the new Bravex coils which fit perfectly on the plugs and in the plug hole giving a solid pop seal when seated fully. This should greatly help reduce the crap that entered the plug holes before.Now the best part. The truck has been given a new life with much better throttle response, smoother idle and seat of the pants estimate of 10-15% more power compared to before the coil #4 stopped working. It really woke this truck up. Now it feels like the engine specs it has. Just excellent.I will update this post if something happens within the 2 year warranty and I have to make a claim.So far an excellent experience with this product.

I bought coils for my truck from this seller on Amazon in Jan. of 2021I started getting misfires and my phone app says couple of coils were failing. So Sunday around noon I emailed the seller thru Amazon. I only asked if they may have a warranty. At 4 Sunday a email asking for my address at 10 Sunday a email saying new coils were shipped. Purolator delivered them about a hour ago. Tuesday morning not even two days laterI changed the coils and now the truck is running properly again.Wow

Apparently my truck really needed these. Also did spark plugs. Definetly more fuel economy also feels more powerful. Stutter is gone. Did sparkplugs and cleaned throttlebody at the same time as coils.

Changer 2 coails et fonctionne très bien bon prix

one did not work have not heard anything back. I called them they did call back called back and gave them my info and receipt number. Have not heard anything back from them to date.