I've seen many guys say a Cai makes no difference on these trucks except maybe sound and 1mpg better on mileage, but AFE has a dyno chart of 2 2020 6.7s, one bone stock and the other with only their Momentum intake for "mods" showing a 21hp and 54lb/ft tq gains. I can't find any dyno sheets for S&B.

Given the same price for both intakes, would you go with S&B or AFE?

 

The factory intake will flow all the air the engine is capable of pumping at full throttle and RPM. Anything that flows “more” air is a waste. The only thing that will make it requre more air is a bigger turbo, head work, more RPM or whayever one does to make the engine pump more air.
The marketing “tests” are like watching TV commercials………all BS.

But, they sound cool!

PS: on two different gas engines, I actually got worse mileage with the so called CAI over stock.

 

X2.
The “Dyno” numbers aftermarket CAI companies post is a s t r e t c h of actual truth.
Diesels need clean air to maintain their tight internal tolerances. Stock intakes filter the best, and flow more than any engine can handle.

 

I would put a 4 to 5% improvement in hp and torque in the category of "no difference". Especially considering the numbers are based on the best the CAI supplier could achieve under controlled conditions. Do you think you will actually feel the relatively small difference in your daily driving?

 

Fair enough. I'll just put the money aside for when the Banks Derringer becomes available this coming spring

 

Definitely a better way to spend your money and my suggestion as well. I’m looking forward to the Banks Derringer release.

However, I’m my experience with gas engines and CAI, I’ve always, always made more power on the dyno and ETA in back to back testing, regardless of what the keyboard warriors and forum posts have suggested. Were the gains worth the cost? Now that’s the real debate.
Ironically, I’ve lost power in back to back testing with bolt-on, over-the-counter catback exhaust systems.

Mike

 

Well, as a keyboard warrior, my real world experience does not come from playing drag racer or running on a dyno; but doing what trucks were made for. Working. When pulling maximum loads up and down all the Rocky Mountain states from the Canadian border to the Mexican border, I could not tell enough difference in power to make any difference…….just suffered about a 1 MPG hit with the CAI. Also tried the 5 Star tuning along with the CAI. At the end of each day I was just as tired and no further down the road. This of course was with a naturally aspirated gasser.
In order to make a diifference in power I had to spend lots of $$$$$$$$ and buy a 2015 6.7 Power Stroke turbo diesel. So my take is that if one wants real usable more power, one either needs more engine, or spend big bucks going through the engine one already has in order to get it to pump more air-fuel……..bigger turbo, better heads, better everything. But, of course, this is all just my opinion, which is based on my meager experience driving everything that has wheels for a few days. Got my driver license in 1959, got a commercial in 1965.

 

Caveat Emptor.

 

I have a 17 6.7 with the banks darrenger with I dash and then purchased the banks cold air intake. It was a noticeable gain when I installed the banks cold air intake and I changed my factory air filter every other oil change. My banks 4" exhaust should be in today and I will install it tonight to see if it changes anything.

 

I installed a S&B CAI on the suburban because it can flow more air and has a Donaldson filter. I would not change the intake on my Powerstroke though. Ford engineers absolutely nailed it with the latest air box.

 

I had the same experience several years ago with an F 150 with 5.4. I bought the intake used but in new condition. Sold it on Craigslist for a little more than I paid for it. Never bothered with one again on a gasser.
I did have an F Super Duty bucket truck with 7.3 diesel. I put a K&N hardware kit on it but a Donaldson marine filter. It did help that truck out a small amount. And give the turbo a cool whistle.

 

I came here looking to see if anyone had dyno results posted from Banks or S&B. My argument on these has been that you get worse filtration with no real world performance gains, since the factory intake (specifically the 20-22 PS) outflows the engines capabilities.

Looking at the AFE chart, the numbers seem to be somewhat BS. It makes zero additional power above 2100 rpm, which is where these trucks operate.

My '22 F450 is at 2050-2250 rpm on the highway at cruise. If the truck was on incline requiring rpm to drop below 2000, it's going to downshift and keep the RPM up. Accelerating from a stop is going to keep RPM above 2000 while going through the gears. I don't see where the benefit would be.

Additionally, the claims of x amount of increased flow over stock only come to life at high engine revs and consumption, which this chart shows provides no additional power.

Something else to consider is how Banks has previously excluded rpm ranges from power claims when they don't apply to real world results.

This might be one of those cases, hense the absense of data from themselves and S&B.

I have so heard that while the additional turbo sounds can be nice, the general drone produced on the cab on the highway isn't a welcome addition.

Consider that trucks since 2021 are being shipped without hood insulators, that might be slightly more annoying.

1 mpg gain in the reviews seems like an optimistic exaggeration at best. You're saying 9 mpg from 10 mpg or.... that's a huge increase.

 

buy the AFE . this way there wont be a back order on the banks when I order it next week.

 

I've never understood why they call them CAI's. They should be HAI's. The factory design takes in cold air by way of ducting to the grill. The aftermarket ones take in hot air from the engine compartment. At best, the after market ones allow more air (hot air, though). Yes, I have seen some aftermarket examples ducted to cold air, but those are rare. It's usually just a big-a** cone filter under the hood that allows more intake noise into the cab and gives the perception of more power. I've never been pleased with the cleanability of a cone filter either.

 

they dont have the same opening in sq inches as well as volume size thru their path ways. most producers of CAI have data to support claims.

The stock one is a partial hot air intake....there is an opening on the engine side that is covered from the inside purpose of the opening is to let hot air in. the hot air is supposed to melt ice and snow....problem is its letting in hot air all the time.