Are you in sport mode with traction control off? I have a K and N typhoon filter and my best time is 13.0 @ 110mph and thats with a 2.0 60ft running on stock tires. You gotta use the paddle shifters too, I tried running it in full D mode and ended up doing [email protected] 105mph. pedal to the medal and dont paddle shift till you here the ding. thats how I did it.