Champion vs NGK Spark Plugs ?? Iridium

[JetStar]

I use whatever is OEM (I don't have anything that uses Champion as OEM, If I did i'd go NGK)
2nd choice NGK

 

[Urshurak776]

I tried Champion Iridium in the Hyundai Santa Fe. Idle seemed off to me. Put in Denso OEM plug and it was perfect. I checked the gap and verified correct plug. On my KIA I just put in Denso also. OEM is NGK. Saved almost $20 with the Denso. Car runs great. Either NGK or Denso in a KIA or Hyundai.