Any experience on Autolite vs NGK?

Can get a 8-pack of Autolite AR2592 for $28.

4-pack of NGK Iridium IX Spark Plugs BR10EIX SOLID/6957 for $36.

Is more than double the price for the NGK worth it?

Am I correct my understanding that both of the above are the colder plugs recommended in place of the stock Renesis plugs?

Finn


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