If your locals carry them.
I checked the Autzone, the Napa, and the Checker in my area. They looked at me like I was retarded, then proceeded to tell me I should use a different NGK, or even better, a bosch platinum. They said a stock replacement was the bpr6ekn, or a step up was the bpr6eix. Meh, there websites aren't even finding the 6 or 7es'.
But, the smart thing to do is check your local places first, and see if you can get them...it'll be cheaper and quicker.
:wall: