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Wanting to change my spark plugs soon on my 2018, just want to go with stock plugs as they've been totally fine the last 70k miles. I see both SP-550-X and SP-594 listed as stock part numbers. Which one is correct?

Also, do either of these come pre-gapped correctly? If not, does anyone have a factory service manual page showing the gap, torque spec, etc?

Thanks all!