I just replaced my spark plugs on my car. I went to a parts house and purchased the NGK ILKAR7L11. I put them in and it seems to be running fine. But the plugs do look different from the ones I took out. It looks normal and you have an electrode coming out of the spark plug. But you also have a bump on the ground electrode. The new ones don't have that. Has anyone purchased them from Mazda and received an exact match.
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