HKS and NGK Race Plugs Differences
I cannot believe I have to continue making video's like this. I am doing everything I can to address the constant incoming miss-information. I can only do so much as one person can :)
Current rumor is that the HKS M45XL is not optimal, why... I have no idea but, lets put that to rest!
If you have any questions, feel free to ask in the comments.
Thank you.