Sorry never seen them put as GY2.
The F1 G2 are factory on my 11 GT500...and for a "R" compound tire it is absolute garbage. Come tax return these things are coming off either for another set of BFG KDW2s or Nitto Invos. Didnt like the GYs on the 07 C6, had them off in months for the BFG's never had an issue until I was pushing over 600 to the wheels.
Ive done the break in stuff with them, and Ive even driven them hard enough to heat them up and they still dont stick to the street. They feel like bald tires in dry heat, havent really driven in the rain with them.
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Beware the snake bite.....
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