For someone like me who really can't tell the difference between coils other than what I know from the Tein article, Stance does a really great job of getting my attention:
Pro Comp
What's really compelling to someone like me is that little star graph they have on the left side of the page telling you what these coils are good for, (drift, time attack, etc). I really want them because of the graph but there are two problems:
1. no point of reference to qualify the graph
2. more importantly they don't make their competition coils for the 370z. LOL
I know stance has cheapy coils for the 370z but it's not of the same build quality, I assume, as their competition models.