Originally Posted by Uncle Scotty
My '06 with a v7 STi TMIC, and Stromung shorty DP->stock last cat-> 3" out the back Stromung single tip and OTS 93 octane AP stage2 is at LEAST 25WHP stronger than it was stock....no doubt.
I am kinda shocked at how much power the car makes
I think what we need to clear up here is if he's running a 2.0 or 2.5 (as his profile doesn't exactly say which). That would play a huge role in "guesstimating".