AEM Electronically Tuned Intake (ETI) Systems

Once again AEM is raising engineering standards with an all new series of innovative air intake systems call ETI systems. With a revolutionary ETI module and fully integrated design, AEM has eliminated the need to detune or stage an intake tube diameter as it crosses the MAF sensor. The sensor is electronically adjusted to read proper air density instead of using physical tube designs intended to “trick” the MAF reading. The result is bigger horsepower and torque gains.

Most modern fuel injected cars use a Mass Air flow (MAF) sensor to determine the air flow rate into the engine and meter fuel according to input from the sensor. The relation between the voltage output of the sensor and mass air flow is adversely affected by a shift to a larger diameter intake tube because the airspeed is reduced. This causes the MAF sensor to “under report” air flow causing a lean condition at worst and a Check Engine Light at best. To accommodate MAF sensor reporting, many intake systems reduce the diameter of the intake tube near the MAF sensor to stock or near stock size because of the need to maintain the correct air speed for the sensor to report the correct flow rate to the ECU. AEM’s ETI Intake System is an alternative design approach that allows the intake tube to maintain its diameter resulting in more air flow into the throttle body. The ETI Intake System allows AEM to tune an engine for even more power by avoiding any tube down-sizing that will reduce overall airflow and horsepower. Instead the ETI electronically communicates with the MAF sensor to ensure an accurate amount of fuel is being delivered even though the tube is larger in size than the stock system. This means the vehicle maintains the calibration as intended by the factory while enjoying the benefits of our custom designed aftermarket intake system.

AEM ETI Systems are now available for the following applications:
– 09+ Nissan 370Z – 41-1001P
– 08 Scion tC – 41-1401C or P
– 06 Lexus IS350 – 41-1402C or P
– 09 Scion xD – 41-1404C or P

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