Excellent product and fast shipping.

Good product

I'm sure they're out of warranty but one of my Packs failed. I kept the original 7 so now I'm down to 6 of those. I really should be keeping an original on me at all times.

Got these for my 2001 Crown Victoria P71 CNG-powered Police Interceptor, now going on 94,000 miles and starting to growl (idle rough) from old spark plugs and COPs ("Coil On Plugs"). Ford replaced one COP and plug and it ran better for a little while, but then the rough idle came back. The dealer wanted almost $100 a COP plus labor to replace the rest of them with Ford parts, so I got these COPS from Accel for about $180 for the set of eight. I've had great luck with Accel products on my other cars in the past, and they did not disappoint me here. I paid Ford to put them in (because one thing I don't do is mess with 3000 psi fuel systems, which had to be disconnected to install the COPs). At first the Ford tech said they lacked a rubber insulator on the side of the coil top like the OEM part, but I called Accel directly in Cleveland and they assured me they would fit and work fine in my CNG car, so I went ahead and told Ford to put them in, along with 8 new Ford spark plugs. (Also the Amazon "Fits your car" pull-down at the top of the order page said they'd fit.) Sure enough, they worked perfectly, and the car now idles smoothly and has perceptibly more power. I can only assume that Ford added the insulator on the side of their OEM COPs to prevent heat damage; the Accels don't have this insulator but I'm hoping they are designed for higher performance and don't need it. Also the vertical black boots that come down off the yellow Accel COPs are noticably thicker than the OEM part, and there's no noticable static on the radio after installation. Finally, the yellow top on the Accel COPs matche the yellow "Optima" deep discharge Police battery, and makes the overall engine compartment look cooler. This car has in fact been a car show star, for it's unusual combination of Police features and CNG fuel system. Similar CNG-powered Crown Vics have been known to run over 600,000 miles, but it's a good idea to change the COPs and plugs every 90,000 miles apparently, as the stock plugs were quite worn when I replaced them and the COPs were showing signs of wear as well. At any rate, these Accel COPs are highly recommended as a cost-effective way to improve performance and keep these great CNG cars on the road using cheap, plentiful, clean-burning American natural gas!

Did the trick, truck is running fine