HP gain from a turboback?
I have only had my WRX for a little over a month, but I was looking into turbo back exhausts, or maybe even a cat-back.
I was wondering what is the average horsepower gain for these types of exhausts, and if I would do a turbo-back exhaust, would a high flow cat make it legal here in VA?
I don't want to void my warranty either, and i heard that subaru is pretty touchy about things like this.
regardless, I want to get some more power and get my car to sound a little better.
I do not plan on doing any major upgrades to my WRX anytime soon, focusing on paying it off before i really get into going to the engine internals. Like to just stick to a couple bolt-ons to keep me satisfied.
any info would be appreciated, thanks