Hi, I'm new to subaru don't know nothing about boxer engines or how they work. I got a 100% stock wrx with 80k miles. I know that they come stock with 220 hp 10 years ago, ha. I am looking to get around 275 hp to the wheel, but have no idea where to start. If someone could point me to the right detection id glady appreciate it. I'm from the Portland, OR.