2024+ Duramax L5P Ram-Air Intake – Banks Reveals the Truth
The 2024+ Duramax L5P is one hell of an engine. It offers big power and bigger torque in a smooth, stout package. But it can be better. We know, because we’ve made it better with our new Ram-Air intake system, but the secret to making the turbo and engine more efficient is our patented Banks Air Mass Control Module. Watch above to see how everyone else’s intakes are just for show.
Why it’s better:
- 58% increased airflow over stock intake
- Increases air density at the turbo inlet
- Improves turbo efficiency and longevity
- Improved filtration and longer service intervals
Full Video Transcript
00:00 If you have a 2020 or newer Duramax, you cannot improve the performance of your air intake system unless you have this—the patented Banks Air Mass Control Module. I’m going to show you what this is and how it allows us to do what other intake manufacturers cannot.
00:16 Without this, your fancy-looking intake system will end up performing the exact same as stock. We’ve entered a new era of intake air calibration. OEMs use a mass air flow sensor, also known as a MAF sensor, to measure the mass or weight of the air entering your engine. These sensors are calibrated to a very specific cross-sectional area.
00:32 All other intake manufacturers have to match stock airflow and pressure. In other words, the area at the MAF sensor has to stay the exact same size as stock. And since you’re stuck with that size, all you’re really paying for is cosmetics and a logo.
00:48 If they try to increase flow, all they’ll end up with is a trouble code and reduced power. Pressure is also a factor. Modern trucks measure pressure in the intake air system—more specifically, filter restriction. Too high a restriction, it thinks the filter is clogged. Too low a restriction, it thinks there’s a hole and the engine is sucking in dirty air.
01:03 Now let’s look at the filter itself. Compare stock to the Banks Big Ass Filter. Not only is the Banks filter serviceable, it flows 58% more mass air than the stock paper filter.
01:18 The Banks Ram-Air is 27% larger than stock. Its massive cross-sectional area, large organic shape, and free-flowing filter reduce restrictions and choke points before the turbo’s compressor inlet. Without the Banks Air Mass Control Module, this would not be possible.
01:36 The module is programmed to know the difference between the stock intake and the Banks Ram-Air system. That means it knows how and when to adjust the data to match stock airflow conditions.
01:51 It keeps the ECM happy while allowing us to increase size and shape, improve air density, turbo response, fuel economy, engine longevity, extend filter service intervals, and maintain 50-state emissions compliance—all with no check engine light.