Quicke here: i'm coming from back to back platforms that don't carry a defined modding path or "Stages" as with the STI and EVO. I've checked different vendors, cobb, stikiller, and gruppe-s. My internet searches have come up short on being able to say that i know a difference in them. They seem to depend. I was looking at the actually wheel horsepower at each level and mods that are included.Can somebody help me out with this?
I was just wondering because I meet this guy with a stg 2 sti on the highway and wasn't very impressed at all. It was loud and all but I just expected more I guess.

 

for STi's stage 1 is a tune prolly good for about maybe 250whp depending on dyno
stage 2 is tune and exhaust good for 270-300whp depending on dyno

 

evo's don't really have stages...that is a suby thing

search for more information on evo bolt ons and such...start with the link in my sig

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