Spark plug question 125sx

Hey, presently i am running a NGKBR9ecmix Iridium spark plug in my sons 2013 125sx, these plugs are extremely pricey here in Canada($25.00) havnt had any fouling issues yet but im wondering if a normal BR9ES would work ok?

Yes, they will work.  Gave up on expensive plugs years ago. 

just had a look at ktm australia - they want $46 for that plug - WTF !!

just had a look at ktm australia - they want $46 for that plug - WTF !!

Oh its sickening lol

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