Spark plug P51R-18-110 VS PE5R-18-110

Hello everyone

Hope you are doing well!

I'm a new owner of a Mazda 2 sedan 2016 Skyactiv 1.5 107 HP.Din. I hesitate between two Spark plug serials P51R-18-110 and PE5R-18-110. So which one is more suitable for my car model. And if they are nearly the same I want to know the difference between them.

Thank you in advance.
 
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