Having cold air intake with your Scion vehicle means improved engine performance. Though there are cheaper and simpler ways of making the engine system improve its performance, still nothing beats the service of cold air intake. Cold air intake helps the engine, particularly the combustion process, to do better. It simply does the job by letting the engine breath cold, dense air. This air should be clean enough not to destroy any sensitive engine parts. This can be easily done through providing the high-performance air intake system with a highly capable Scion cold air intake filter. This one's a high-flow air filter that traps dirt more efficiently that stock units. The Scion cold air intake filter starts working once the cold air intake also starts functioning. This cold air intake makes sure that cold air is brought into the engine and not the warm air accumulated under the hood. The purpose of this is to make the burning of fuel more complete. Significantly, that means higher power produced. How's that done? The cold, dense air drawn inside the engine has more oxygen than warm air. Since oxygen is the primary component in the combustion process, fuel is burnt more efficiently when there's more of it. But if this intake system is not equipped with properly working Scion cord air intake filter, the combustion would still not undergo efficiently. Air particles trapped in it would obstruct the flow of cold air, thus letting only small amount of oxygen for the power production. You can clean your Scion cold air intake filter to let the engine fully benefit from the use of the cold air intake. The cleaning process is done just like how it is with other reusable air filters. But when the filter is already worn and tattered, replacement is the only solution you got. And here at our online store, wide selection of aftermarket Scion cold air intake filter is available.