Pontiac makes a functional ram air hood for sunfires. You may also want to upgrade your suspension/wheels/exhaust for gt parts. All these components are available through your local dealer. RK sport also offers the hood and exhaust. You can compare prices to see what the better deal might be. Also keep your fingers crossed because pontiac is working on a supercharger for sunfires. The good thing is it won't void your warranty. The bad thing is expect a price of around $2500 dollars for parts alone. Hope this helps.