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
Just knowing the stock for stock difference is nearly 60 hp, that would say a lot. Also searching the website, you would see that a VF39 swap is extremely common and for your year, requires very very little. (You also didn't ask about the swap so no Idea how you expected to learn about it)
I suggest reading the stickied Manifesto (located in Newbies section) and taking it slow, learn everything you can, then go crazy.