Modifying your Focus ST can be a ton of fun, you just have to know how to go about it.
There are a ton of performance parts you can put on your ST from short shifters to big turbo kits. But when you understand what the parts are and why you're putting them on, you end up having a much better experience with the car. Whether you're a seasoned performance guru or a complete "newb", this guide can help you understand how to get more power out of your Focus ST.
