Today I raced a buddy of mine that has a pretty heavily modded 300zx. When I had my mildly modded '01 Camaro SS, we used to be about even going from a standing start. From a roll, I would usually take him by 1/2 a car or so.
I traded the SS in for the STi and the only mod I have is a Blitz SUS intake.
Today we ran. When we went from a stop I'd pull 1 1/2 cars on him right out of the hole (no surprise there). I'd hold that lead all the way through 3rd and then we had to shut down (short road). When we went up on the highway and raced from a roll, it wasn't pretty. He pulled away from me easily every time. The slower we started from, the better I did but the bottom line was, once I was done with 3rd gear, I was done for.
Now, I know the STi's claim to fame is the launch and that its not noted for it's top end but I expected better. My Camaro certainly felt stronger up top but I didn't think it was that much of a difference. My buddy told me not to feel too bad. He said that my Camaro was the only LS1 car that ever beat him (and he races a lot). Of course, that didn't make me feel any better about getting rid of it!
I'm still happy with my decision to get the STi. I love the car. I'm just a little bummed at the moment. I have a Godspeed DP on order and a MBC in the garage waiting to go on so that will help a little. I didn't really think a bigger turbo was in my future for this car but I may have to re-think that!