hi guys,
i found a real good deal on a pair of continental tires. One is almost brand new and other has camber wear and used.
Would i be OK to run these tires on AutoX event and DD? i'm afraid i would have decrease in performance and wear on certain parts due to one side having more traction than the other.

The pic i attached are the pic of used tires.

 

here's the pic of almost brand new

 

Looks like the all season Extreme Contact. Not a tire I would use on the track. You'd burn through them quickly and handling would be average at best at the kind of speeds/conditions you'd see at the track.

 

Would i feel a big difference in decrease in performance if i run two different branded tires, different tread design, from left and right at the same time?
I got a free pair of one michelline sport(?) and one Dunlop

 

Yes. One end/side of the car would want to act completely different than the other. Wouldn't play football with football shoe on one foot and a dress shoe on the other. Same concept.