I use either the Brisk LGS design plugs or NGKR racing plugs because of electrode positioning
as I want direct fire of spark (high efficienty), not electrode spark distortion (less efficient)
I'll assume you replace all 4 plugs at the same time?
as most ppl tend to forget the lowers
your lowers should be of this type BKR7EKC-N of electrode configuration
I remember halo, but definitely prefer the game given the choice
