Hello, I'm new to the forum and want to explore how to do two things with my 2004 WRX: 1) get another 10 years out of it; and 2) boost the performance. I am recently a new dad so our next new car will be a Forrester for the family. I really want to get a new WRX STI but that's not going to happen for a while. So, I'm researching what I can do to my current WRX (165k miles in great shape) to make it last another 100k miles AND add 50-75 horsepower.
Any suggestions on where to start?