LEXUS IS250/350 2006-2013 FSPORT AIR INTAKE SYSTEM OEM PTR03-53100

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Increased airflow allows your engine to burn more fuel, and more fuel equals more power. An engine operates most efficiently with a mixture of 14 parts air to one part fuel, also known as the stoichiometric air/fuel ratio. So, if more air is supplied to the engine, more fuel can also be burned. More air and fuel (in the proper ratio) in the combustion process means a more forceful explosion driving the pistons, resulting in more power to the wheels.Cold air is denser and contains more oxygen. It's the oxygen in the air that combines with the fuel for combustion, so if the increased airflow is also cooler, more fuel can be burned resulting in even more powerful combustion. It's estimated that for every 10 degrees cooler the air intake charge, power will increase by 1 percent.Thankfully, the electronic fuel injection systems on the late model vehicles that these systems are designed for, especially those with MAF (Mass Air Flow) sensors, have no trouble compensating for the increased airflow. The Engine Control computer reacts to the increased airflow by increasing fuel delivery to maintain the correct air/fuel mixture.Emissions Compliance Information: A new process has been implemented. The Emissions Label is No Longer included in the Performance Air Intake Kit. If your state requires an Emissions Compliance Label, one may be ordered through your Lexus dealer. This item can be ordered thru our ebay store. This F-Sport Performance Air Intake Kit has received 50-State Emissions Compliance via the California Air Resources Board (CARB).  Not all states require the Emissions Compliance Label but it is recommend to order one.  To receive the proper Emissions Compliance Label for this F-Sport Performance Air Intake Kit,