The evo is going to handle just as good if not better than the STi. They both go for around the same price, but with the STi you'll have a 6 speed with is kind of ideal for saving gas. The evo is faster in stock form, and responds alot better to mods than an STi, but they are both quick. Im not sure but parts may be around the same for both. Keep in mind your gunna need alot in a STi to keep up with an Evo thats has 2-3 mods, such as a MBC, Full TBE, and a protune.