Some Nology Silverstones.... I have them now, they work great! I've used NGK's, Bosch's, Denso's, etc, etc, and to me, I like the Silverstones most. NGK's I believe have resistors in them and I wouldn't be surprised if all the brands I've listed have them also. When I switched between those plugs, you can't tell "ANY" if there is "ANY" difference at all. With the Silverstones, not large amounts of difference but you can just tell, super smooth rev, I use to have little hesitation at certain RPM's... now no hesitation what so ever... great plugs, just give htem a try, never hurts, that's what I did, I change different brand plugs every 5k miles lol, just to see if anything is good, and for now, these silverstones are on top of my list. Need some? Go to
http://www.nology.com.