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Message: [QUOTE="erbear28, post: 1543387, member: 18178"] Steve Carter who runs absolute performance has done some similar testing “For example, the Absolute Performance intake shows a 2-7* delta of intake temp vs ambient air temp. Similar to the stock 3-5* delta. Both intake systems drawing air from the factory location. Those delta numbers alone dismantle the "hot air intake" comments but let's take it one step further... Underhood air temp issues in these trucks at 40,50,60,70+mph are almost non existent. The engineers at ford have mastered under hood airflow beings that the front stack in the core sees a massive amount of air across its surface area, moving into the engine bay and down out under the truck. Keeping a large portion of the area near the major heat emitting components covered with cooler ambient air which eliminates the hot air pockets most have come to expect to be under the hood. Speaking of heat emitting components, thankfully the 6.7 motor design has all the exhaust components in the valley of the engine, and the intake on the outboard side. Even further eliminating heat soak issues or potential. Throw in the fact that the air filter on the Absolute intake is surrounded by the battery box, front core and fender, or on the 2017+ trucks - surrounded by the egr cooler and battery tray, you really just don't have the "hot air intake" effect some people uneducatedly claim to exist. Now let's get down to why even if it was a "hot air intake" it wouldn't matter.... This particular motor is setup with a inline air to water intercooler which is tasked with cooling the air charge to the motor post turbo. Now most people don't know or at least aren't thinking of the turbo as a air compressor and the physics of compressing particles like oxygen at a high rate of speed, what occurs. The biggest being heat. The 6.7 turbocharger absolutely can and will create charge air temps (post air intake system) that are 5x higher than ambient air temps. Meaning on a 75* day, I have seen Air Intake temps as high as 400* at WOT. Cruising speeds the turbo usually creates 2-3x higher air charge temps than ambient. The air intake system albeit stock or aftermarket only affects that number by single digits in my testing. Which doesn't really mean much, and wouldn't mean much even if the temp was 10-15-20* higher because that wonderful little inline intercooler is in place to bring those temps down and make them optimal again. So what's the point of an Absolute Performance Air Intake system? VOLUME. Cramming as much air into the turbocharger as humanly possible. Obviously the more available air to the turbo there is, the more efficient that turbo will be in the essence there isn't a restriction on the inlet side making the charger work harder to do its intended job. How does this relate to you in terms of performance? Horsepower and more notably, throttle response. Crisp and clean off the line, every time So... take it from a guy that's spent the months testing these systems and products with data logging equipment in a variety of setups, scenarios and locations - there is no such thing as a "hot air intake" on a 6.7 Powerstroke” [/QUOTE]