looks like those have the colored inserts on the tread----seen them at a burnout show at the track and the smoke from the tires had a hint of the tire color in it---pretty cool gig out
you and me both. right now with a half tail tune, 1st to 2nd pulls @ 10-12 psi it breaks loose and goes sideways . almost uncontrollable, but fun at the same time. when money and time allows ill have it put on a dyno and get it fine tuned