Originally Posted by Bov_Rider
the comparison am trying to do is for same year for sure as mentioned in my thread. between a 2007 stock STI and a 2007 WRX cobb stage 2. I wanted also to know if upgrading to VF39 is possible without engine modifications and with the Cobb Stage 2 what would be the Horsepower of the car.
Anyway I will check the Cobb website and if you want to share your knowledge, I would appreciate that. thanks
HP numbers really don't tell you that much. Its the way the car feels, some feel fast, some feel slower. Cobb can give you some numbers, doubt they will mean too much. The butt dyno is a strange thing.