75-5132 2019-2024 Ram 6.7L Intake Test data
Banks' own numbers don't match his new video.
His August 2026 video says our intake flows less air than the factory airbox. His own earlier testing said the opposite.
Less restrictive than stock. Our lab, published in full.
Better than stock. That was Banks' own bench test.
Worse than stock. No procedure or curve published.
Measured to ISO 5011, from idle to wide open, published in full.
We test our intakes to the ISO 5011 Filtration Test Standard, the protocol most automakers use, from zero airflow up to the maximum CFM the truck pulls at wide open throttle. We publish the full curve, not just one reading.
Airflow is only half of it. Any intake can be made to flow more air by filtering less of what's in it, which is why ISO 5011 also measures efficiency, at the truck's maximum CFM, because stopping dust gets harder the more air you pull.
Over 40% more airflow than stock, and slightly better filtration than the factory box. Both figures come from the same test report, and you can read it yourself.
Banks tested our intake twice and got opposite answers.
Go by the numbers that repeat.
The 75-5132 is less restrictive than the factory airbox at every measured point from 214 to 1069 CFM, up to 40.63%, while filtering at 99.89%. Our ISO 5011 results are published in full, and Banks' own earlier test agrees with them to within a percentage point.
One number out of three doesn't match, and it's the one attached to a sales pitch. The chart carrying his +39.8% result sat on his product page for years and has since been replaced at the same web address with the new figures. No correction, no notice. The Internet Archive kept a copy.
Questions? Call us at (909) 947-0015 and we'll walk you through the test data line by line.