This is one part where you just can't beat OEM factory stuff. They're expensive, but worth it in the long run. Don't buy into the hype from aftermarkets about better spark, more power, bla, bla, bla.

NGK might possibly be the OEM supplier to Toyota, so it's possible that you can just buy the NGK part from any autoparts store and basically get the same thing the dealer sells, but at a cheaper price. But that's only if NGK really is the OEM supplier.

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