everyone keeps saying its limited to 150 top end, but i ran mine to 155 and it didnt cut out, the ride was so damn smooth i was fumbling in my pocket to pull my phone out to take a picture too, so i think the 150 limitation is either bullshit or only on the 05's, also i just walked in the door from san deigo to brea and i outran a mazda 6 on the way home (no bragging there, it was given) also a g35, AND a 350z, but i think the Z wasnt giving its all, it was a interesting drive but i thought that maybe the g35 wasnt giving its all either till i read these posts. i was ahead by at least 8 cars from 80mph to 130mph, who knows, my brother has a g35, i'll see if i can get him to run me one day.