If you have a 2004 Honda Civic that uses these ignition coils, your best bet is to just buy Denso ignition coils, oxygen sensors, etc if you can find a decent price for them. Denso (formerly known as NipponDenso) is what Honda usually factory installs on its vehicles. I've bought parts from other brands, even very well known American and European parts companies, and there are subtle differences in how their products are made that make them work worse or actually fail faster.
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