[SteveSpy]

I have to say that after installing my Dinan Stage 1 tuner I'm spinning my wheels a lot more than before when I floor it. My old S4 never spun its wheels. Granted, there are almost 200lb/ft of torque more on my M4 than my S4 ever had but still, no matter how hard I tried to get them to spin they never did. Sometimes when I hit the gas I can feel a slight slip even going between first and second or second and third because of the sheer power. I wish F8x's were available with X-Drive.