Yea the s2k only puts down about 200 to the wheels (rated at 240)bhp. Only around 140 peak torque if your motor is strong, which IMHO is not nearly enough. Which is why I TC'ed mine. Brought the WHP and TQ numbers into the happy level. now its more fair, a TC 4 cylinder against a TC 4 cylinder. PSI for PSI the s2k will destroy the srt-4.