I've exhaustively (no pun intended) researched mods, so far I've found a custom hood with scoop, and I've been trawling for turbos, headers, and blowoffs. There's room under the hood for a turbo. Before you go and say "Should've just bought a WRX". Humor me. I got my Impreza Sport 2.0i sedan as a gift, and I love it. But i want performance, and I know how to mod cars. I've worked on a friend's Honda helping fit a turbo. I'm not even close to an expert or a mechanic, but god, I really just want around 200 horsepower.