I'm Very impressed with these Coils, Heavy very solid construction, My 06 Mercury Mountaineer Had #7 coil go out at 129,600, and cracked the #7 spark plug, I had installed all new set of plugs at 98,000 miles, I paid $170.00 parts and Labor, to get both replaced, they would cut me a deal to replace the other 7 somewhere in the close to the $900 range, after looking on line at how hard this is to do (Its Not), I search for a replacement Coil Set and found these, ordered on June 19th received on tSee full review