This is what it means...
YouTube - Ride in a PPG'd WRX with 100% meth and 25psi w/20g turbo
YouTube - renn's STi 0-60 MPH *spinning* 20g/meth/EWG
If you haven't pushed the car yet, I don't think you realize how much power 350 hp/tq really is. It's capable of low 12s in the 1/4 mi, depending on your driving. That's on par - if not faster than - a stock M5, RS4, c63 AMG, M3, etc.