Feel the need for more speed and power? For your Scion to obtain its maximum performance, install a Scion performance chip. Scion performance chips bring out the unused horsepower of your engine. How does a Scion performance chip do that, you ask? Well, here are the basics. Modern automobiles are equipped with an ECU or Electronic Control Unit. Normally ECUs are set to maintain a fuel/oxygen ratio of 14.7:1. This fuel/oxygen mix is called the stoichiometric fuel mix, a balance between power and fuel economy. Generally, leaning out of the normal ratio causes power loss, but will gain fuel economy but an increase from the normal ratio works otherwise. The mix must remain between ratios of 13:1 and 17:1 for it to be efficient. By installing a Scion performance chip, your Scion will increase performance by adjusting these ratios to 13 and a maximum of 14.7, fuel curves that are more performance oriented. So if you want to install Scion performance chip in your Scion you don't need to look no further. Ordering one from us makes it all the more convenient for you. Our service is open 24/7 so you can place orders anytime of the day. And most of all we guarantee that ordering from us is secure and fast. So, order your Scion performance chip from us today and experience the ride of your life everyday. Other performance parts are also available as well as other parts and accessories of different makes and models.