NGK or Magnecore
#4
Moderator
(Blue) NGK's are 8mm I believe, and (Red) Magnecor's are 8.5mm. That only means the shielding is that much thicker. But it helps. Magnecor also has 10mm Race wires. I'm not sure if they have them for the Tib, but I had them on the Z and they were great. You can always build yourself a set. Putting wires together is easy. I put together a set of Accel 8.8mm race wires for the Tib since they were very cheap doing it that way.