Few things revive you more than a breath of fresh, cool air. You could say your XB feels the same way. Drivers have long known that a cold air intake system is a good way to increase the power generated by their engines. The cooler, denser air that a cold air intake system gets from somewhere other than the hot area under the hood makes all the difference. By doing this, a greater quantity of oxygen is delivered to your engine. The increased oxygen, combined with the gasoline in your internal combustion engine, helps generate more horsepower. (Is it possible to have excessive horsepower? We didn’t think so, either.) If you want to get every bit of performance out of your 2003 - 2006 Scion XB, then you know that nothing else will do but an Volant. Volant’s Scion cold air intakes are specifically designed to work seamlessly with your favorite car. You won’t find anything else that will work as well with your engine as these Volant XB cold air intakes. Go ahead; take this good first step to maximizing your car’s power. You’ll love the throaty rumble it’s going to make when it sucks in a fresh, cool breath! Our customers always deserve professional customer support while buying dependable auto parts for their car or truck. Accordingly, we've built a 24/7 technical help call desk to answer all your requests. If you spot a better price somewhere else, tell us - we will meet or beat any advertised price for auto parts.