132 votes
I've used denso and Delphi. They are oem suppliers to ford. I use them interchangeably without issue. Not sure about other brands. I do know that many have had poor results with the cheaper brands.
I got Denso ignition coils for my honda s2000 using the matching OEM part number. they were real. don't buy off brand, especially if it's a performance car
I had a bad coil that only misfired when the car heat soaked after a drive. If I didn't let the engine cool down a bit, it would misfire on startup. I found one of the coils had a rust spot on it, replaced it with an OEM Denso and have been running for almost 4 years with no problems.
Don't buy unless it's Denso or Toyota I wasted $300 on fakes
I bought a new Denso coil to put on cylinder 3 just to eliminate it as a possibility.
I was chasing down a P0352 CEL. I moved the #2 COIL to the #1 cylinder and the CEL followed the coil (P0351). I ordered the first Denso Coil from Amazon ($53), knowing there could be a possibility of a fake/counterfeit. CEL disappeared.
I'd recommend Only the denso coils. I got a denso and that's lasted about a year so far.
Denso coils are good for another 150,000 miles
If you want to aftermarket
DENSO 673-3204 is best
Grab some Denso coils from Rockauto. Shouldn\u2019t take ten minutes to swap them. The locks on the plugs are about guaranteed to snap (if they\u2019re even still on it), don\u2019t panic, just plug them back in and don\u2019t worry about the locks. The four 2AZ Yotas I own and the 3MZ Sienna have been just fine without them.
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