2025 3.0L I6 K&N Performance Air Intake System

[Nethellum]

There is a lot more to engine cooling when driving down the road than just the cooling fan. When you are above 35-40 mph, the airflow from speed , is more than the electeic fan will ever pull. Plus the airflow through the engine bay that gives some air cooling assitto engine. Plus, by the time the electric fan kicks on, the PCM is already pulling timing due to coolant temp.

Now, I'm not trying to justify the HP claims by cai manufacturers. I've already said they skew the numbers. But you never want to dyno a vehicle, with the hood closed, unless you are in a wind tunnel that can create the same wind speed as driving down the road.

Just watched a few videos with dyno runs hood up and hood closed.

 

[fescen9]

I installed the K&N system on my '25 Limited but thinking about putting the stock intake back in. My IAT (intake ambient temp) sit at 200F according to JB4 app! That doesn't feel right... I wonder if there's a limited > RHO hood conversion to help out.

 

[CalvinC]

I installed the K&N system on my '25 Limited but thinking about putting the stock intake back in. My IAT (intake ambient temp) sit at 200F according to JB4 app! That doesn't feel right... I wonder if there's a limited > RHO hood conversion to help out.

That doesn’t sound good at all. Would have to believe timing is seriously pulled at those temps.

Were you watching IAT’s before the swap?
Would be super interesting to compare to stock.

 

[fescen9]

That doesn’t sound good at all. Would have to believe timing is seriously pulled at those temps.

Were you watching IAT’s before the swap?
Would be super interesting to compare to stock.

Engine was running fine actually, just wish I noticed the high temps earlier...

I'll check the jb4 app after putting the stock intake back in and report back.

 

[LOWRMPG]

I installed the K&N system on my '25 Limited but thinking about putting the stock intake back in. My IAT (intake ambient temp) sit at 200F according to JB4 app! That doesn't feel right... I wonder if there's a limited > RHO hood conversion to help out.

Yikes, that is incredibly high. Can't even imagine what that looks like under a real load over 20psi+

 

[HSKR R/T]

I installed the K&N system on my '25 Limited but thinking about putting the stock intake back in. My IAT (intake ambient temp) sit at 200F according to JB4 app! That doesn't feel right... I wonder if there's a limited > RHO hood conversion to help out.

Yikes, that is incredibly high. Can't even imagine what that looks like under a real load over 20psi+

Is the it's sensor before or after the turbos? Are you sitting still when reading these temps, or cruising down the highway?

 

[fescen9]

Is the it's sensor before or after the turbos? Are you sitting still when reading these temps, or cruising down the highway? Get to

I'm not exactly certain which sensor or location yet. Once it reached those temps, it didn't come down, even on the freeway. Thankfully haven't put more than maybe a couple hundred miles on with the new intake and mostly short trips.

It didn't get to those temps right away, might be after driving a bit, making a stop then continuing on.

Curious what others with the K&N are seeing...

Edit: All of my temps were fine on the dash as well.

 

[fescen9]

OEM intake is back in, temps are normal (<120) after making a few stops and freeway time.

Here's where I think the IAT sensor is.

Also, look at the design of the front grill. It's blocked off and the intake inlet is a hole near the radiator. I think the OEM design uses the sealed box to actually suck air in instead of relying on it flowing in freely.

IMHO, DO NOT put this on a RAM that does not have an air inlet in the hood, and the only one that does that I'm aware of is the RHO.

We'll see how the S&B works when they release it, they have a custom inlet design instead of relying on the OEM hardware.

Edit: I plan to investigate how to modify the hood and or rework the air inlet but honestly, the OEM design seems pretty good...

 

[LOWRMPG]

OEM intake is back in, temps are normal (<120) after making a few stops and freeway time.

Here's where I think the IAT sensor is.

Also, look at the design of the front grill. It's blocked off and the intake inlet is a hole near the radiator. I think the OEM design uses the sealed box to actually suck air in instead of relying on it flowing in freely.

IMHO, DO NOT put this on a RAM that does not have an air inlet in the hood, and the only one that does that I'm aware of is the RHO.

We'll see how the S&B works when they release it, they have a custom inlet design instead of relying on the OEM hardware.

Edit: I plan to investigate how to modify the hood and or rework the air inlet but honestly, the OEM design seems pretty good...

Great post, from what it looks like on S&B's site they plan to use the OEM inlet design.

 

[fescen9]

Great post, from what it looks like on S&B's site they plan to use the OEM inlet design.

It does look like it has an optional window so its sealed as well.

In that case I have to ask then, what's the point over OEM? I guess you could argue that an (i assume) aFe filter is better than OEM but other than that, it's essentially the same design. Looks nice though...

 

[LOWRMPG]

It does look like it has an optional window so its sealed as well.

In that case I have to ask then, what's the point over OEM? I guess you could argue that an (i assume) aFe filter is better than OEM but other than that, it's essentially the same design. Looks nice though...

Run S&B on my Jeep, sounds much better - so that is enough for me. As for function, I'd offer a better overall filter.

 

[CalvinC]

It does look like it has an optional window so its sealed as well.

In that case I have to ask then, what's the point over OEM? I guess you could argue that an (i assume) aFe filter is better than OEM but other than that, it's essentially the same design. Looks nice though...

It’s for when you want hotter air filtered by a screen door.

The sound is nice though.

 

[fescen9]

It’s for when you want hotter air filtered by a screen door.

The sound is nice though.

Sounds about right from my experience.

 

[Ramduke]

I wanted to review the K&N Performance Air Intake System I purchased for my 2025 Ram 1500 Limited with 3.0L HO I6. I want to start by giving a shout out to K&N. They have always made good products at affordable pricing. They also support the military and will give you a 30% discount if you call them directly and place the order.

I called K&N last month to talk with them about the new air intake and to try and get an idea when they would be available. They told me early December and to just keep checking the website for updates. I have been checking daily for stock on their website and last Monday they finally got some. They weren't around long and still show out of stock on their website.

I ordered mine on Monday and had it by Thursday. I had some time on Saturday to install. The install was pretty straight forward but you could tell this was an early release.

1. Instructions are good but could use a little more detail. Such as socket size used on the actual step. Socket sizes are listed on the tools needed section but not on the actual steps in the Instructions.

2. The same goes for allen and torx sizes.

3. The K&N air filter box is tricky to line up and get into position. The hood strut is in the way and causes you to have to come in at an angle and makes alignment tricky. My first attempt had enough of an angle that the mounting grommets all pushed out.

4. The fit and finish was a little rough on the one I received. I totally understand they were rushing to get to market and I am just happy to have one. Rough edges around the air box cut outs are one example.

5. Step 12 in the Instructions is installing the mass air sensor mounting adaptor. They state to orient like their picture. Picture is black on black and almost impossible to pick up the correct orientation. Mainly because the adaptor is almost identical in either orientation. Needless to say, I got it wrong the first time but figured it out on step 14 when installing the mass air sensor.

6. My kit was missing one of the lock washers used on the adaptor plate. No big deal, I have plenty.

7. I was disappointed by the lack of engineering on securing the coolant bypass line and wiring harness for the mass air sensor. The factory air intake tube has 2 holders for the coolant bypass line and like 5 holders for the mass air sensor wiring harness. The K&N air intake tube has a make shift bolted on bracket with 1 wire tie to secure the coolant bypass tube and zero brackets for the mass air sensor wiring harness. You have to play with the orientation of the K&N air intake tube to get the bolted on bracket in the right position to secure the coolant bypass line without putting it in a bind. I just tied up the mass air sensor wiring harness the best I could with wire ties. Not a fan of leaving it hanging loose.

8. The black #88 hose clamp, item O in the parts list, was the wrong size and didn't have enough grooves to tighten down the air intake tube to the air filter. Luckily I had one laying around that worked. The other gripe I have is that the black #88 hose clamp is never mentioned in the Instructions. It should be in step 16 but never mentioned. You can see it in the picture, just no mention. The air filter is just wedged into the air box which had me concerned from the beginning. I originally thought the black #88 hose clamp would be used to somehow secure the air filter to the air box in step 11 but it wasn't. I really don't like the air filter not being secured to the air box!

I along with others was hoping the new K&N air intake system would enhance the sound of the engine especially with the open air box design. I didn't notice any real difference in the sound while driving.

The extra 41 horsepower is nice but so far not really noticeable while driving. Not that I expected to feel a big gain.

Overall, I am happy I made the purchase and happy with K&N for getting the product to market in such a short time. Most of my issues/concerns I still chalk up to early/first run issues and expect them to only get better over time.

Here is a link to the K&N website

NextGen Cold Air Intake - RAM 1500 L6-3.0L TT

NEXTGEN INTAKE; RAM 1500 L6-3.0L TT F/L, 2025

www.knfilters.com

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Yours is missing the red and orange clips. Mine was missing as well, I called them and they not only sent it out quickly but they loaded me up with some K&N swag.
I love mine, and great people at that company!

 

[fescen9]

Yours is missing the red and orange clips. Mine was missing as well, I called them and they not only sent it out quickly but they loaded me up with some K&N swag.
I love mine, and great people at that company!

Edit: I see you didn't reply to me but:

Correct, mine are missing, but not sure what they actually do...

What model RAM do you have? I believe its a bad idea to put this on anything but an RHO.

Get yourself an obd2 reader and an app and monitor those IAT temps!

I'd love to see what others are seeing.

Mine were pegged at 200F+ and my engine did throw a couple P0071's. based on the old engine that's just ambient air temperature but I believe on the new hurricane engines, P0071 is Intake Air Temperature (IAT).

Please keep me posted!

 

[Ramduke]

Edit: I see you didn't reply to me but:

Correct, mine are missing, but not sure what they actually do...

What model RAM do you have? I believe its a bad idea to put this on anything but an RHO.

Get yourself an obd2 reader and an app and monitor those IAT temps!

I'd love to see what others are seeing.

Mine were pegged at 200F+ and my engine did throw a couple P0071's. based on the old engine that's just ambient air temperature but I believe on the new hurricane engines, P0071 is Intake Air Temperature (IAT).

Please keep me posted!

Just saw this… 2025 Limited with the HO. Don’t know about the temps, never received a trouble code or anything, seems to operate perfectly. I’m in Florida and it’s very hot right now, also I’ve put approximately 5k since installing the CAI and I have 10k total on the truck. Just had the oil changed at the dealer and by protocol they scan the OBD…
Btw- The clips just look cool lol!

 

[Sarzoo]

Thanks for sharing. Engine bay looks good..

 

[Ramduke]

Thanks for sharing. Engine bay looks good..

Edit: I see you didn't reply to me but:

Correct, mine are missing, but not sure what they actually do...

What model RAM do you have? I believe its a bad idea to put this on anything but an RHO.

Get yourself an obd2 reader and an app and monitor those IAT temps!

I'd love to see what others are seeing.

Mine were pegged at 200F+ and my engine did throw a couple P0071's. based on the old engine that's just ambient air temperature but I believe on the new hurricane engines, P0071 is Intake Air Temperature (IAT).

Please keep me posted!

Here are some screenshots from my BlueDriver OBD - 1st pic shows our Central Florida Temp at 99F, 2nd pic shows IAT at 102F while driving a mixture of highway and then 15 miles of country roads with a few stop lights. The 3rd picture is sitting in my driveway idling for 5 minutes.
Appreciate your thoughts.

 

[Ramduke]

Here are some screenshots from my BlueDriver OBD - 1st pic shows our Central Florida Temp at 99F, 2nd pic shows IAT at 102F while driving a mixture of highway and then 15 miles of country roads with a few stop lights. The 3rd picture is sitting in my driveway idling for 5 minutes.
Appreciate your thoughts.
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Did a Google search on the normal temperature range of IAT for these Hurricanes-
For a 2025 Ram 1500 with the Hurricane engine, the normal intake air temperature (IAT) range can vary based on several factors, but some information suggests that values
up to 200°F can be expected when operating under normal conditions on stock maps. These measurements are often taken before the intercooler. One source mentions temperatures reaching around 275°F under boost, indicating that higher IATs can occur under specific driving conditions.
Important Considerations:

• Intercooler: The Hurricane engine is turbocharged, which compresses the intake air. This compression increases the temperature of the air before it enters the engine. The intercooler's job is to cool this compressed air down before it enters the combustion chamber, improving performance and reducing the risk of detonation.
• Location of IAT Sensor: The IAT sensor's location can affect the measured temperature. If the sensor is located before the intercooler, the temperatures will naturally be higher. If it's located after the intercooler, the temperatures will be significantly lower.
• Operating Conditions: Factors like outside air temperature, engine load, and driving style can all influence the IAT.

In summary, while temperatures up to 200°F are considered normal before the intercooler on a 2025 Ram 1500 Hurricane engine under typical operating conditions, higher values can be seen under heavy load or boosting

 

[Sarzoo]

Nice.