It only bogged out on me once with the ESP on. It ran consistent 13.4-13.5 with it on. It ran slightly better without it. I was heating the tires in the waterbox and I have the Pilot Sports, so they stuck pretty well with an 1,800 RPM Powerbrake launch. I think the heat played a major role in everything though. I wouldn't be surprised to see do a 13.1 in cooler weather. The track I ran on is TERRIBLE. There is another track that is about an hour further from me, that I've always run a consistent .2 better at with the same car setup on previous toys. So, if that holds close to the same, and I ran it on a nice cool day, it might actually squeeze out a 12.9. That's would nice anyway. No one has done it bone stock, but after yesterday, I'd say it's probably possible. Now if I can get one of my racer friends that weigh 125 lbs to drive it in the those ideal conditions, I think a high 12 would happen.