an Evo and an STI is my Z at the track. I ran against a modded EVO and won, and that was only launching at 3800 RPM's on street tires. Also my friends Z went up against me in my wifes STI and we were nose to nose until he kicked the boost up to 15psi and pulled more than a car length's distance. You must not be a true fan of the Z- to want to back out so easily.