Here is some theory and a real example of why aftermarket intake systems can change your tune. OEM engineers characterize the MAF meter using the stock 'Intake Air Tract' tubing system. Changing the Intake Air Tract changes the air flow dynamics at the MAF sensor.
Vehicle example: [1st Gen] Cruze 1.4T
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*This video is for educational purposes only, Mega Mechatronics cannot be held liable for damaged parts, loss of equipment, and personal injury or death, related to the information contained in this video and the scope of information expressed.