Originally Posted by Lukesfocus
I have a 2013 Focus SE am trying to maximize horsepower. i already have a cold air intake. what ways do you all reccomend to boost performance cheaply?
Welcome to the club!
You can pick two: cheap - fast - reliable
Basically what I'm telling you is you're not going to boost performance cheaply and keep a reliable car. I/E are your best places to start currently and there is a header or two that will work. There's a huge thread about the header.