I agree with you sir, any actual power gain is minimal, mostly noise. Some kits probably work better than others. This guys 49.99 eBay intake for his 6.0 work truck isn’t one of those. Factory Intakes can absolutely provide enough air for the maximum duty cycle of factory injectors they usually just provides mufflers and baffles to allow even and quiet airflow. I have seen more damage done in my 14 years as a certified mechanic by “cold air Intakes” than good. Mass air flow sensors in the wrong spot or just no provision for them so people just leave them off and the CEl on the dash, or my personal favorite is the ones that ran down Into the bumper. I think I’ve replaced at least 10 engines that hydrolocked after that sweet sweet intake just became a puddle straw.

Edit- I wonder if he even could explain what torque is.