Why? Even if they were, upgrading to them would be all but pointless. The gains would be minimal at best. And I'm sure the cost is ridiculous. I don't think they're different anyway.
Best 1/4: 1.90 60ft. - 12.15 @ 119mph on Street Tires.
460.25rwhp & 408.28rwtq SAE on a Dynojet 224xLC
Tuned by Matt Lepkowski, owner and operator a Performance Evolution in Smyrna, DE.