What was/were the problems?Finally, got the Elevate/Autotech tune installed. Peter at Autotech did a fine job. I haven't fully explored the performance envelope as I just filled the tank with 89 octane gas. I will wait until I fill-up with premium gas to get the total impact. But as of now, with the Stage 1 tune, there is a significant improvement with the acceleration, seemingly near that of my old C70!