I'm grown up enough to know that IF the intake were the cause of a problem I'm not going to hold Kia responsible. I'm also old enough now NOT to go racing or abusing my car. I do these mods because it's my hobby - and my dealer knows that.
K&N Intake for 2.5T
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With pics too...
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I believe it depends on dealer, I would suggest emailing the dealer and asking if it's ok.
Still waiting for K&N to ship the intake.
K&N says intake is due to be delivered Monday.
In preparation for the "under hood heat" discussions if this works:
at 40 MPH:
![Light Font Vehicle Display device Gadget]()
At 45 MPH:
![Watch Gadget Window Font Auto part]()
At 55 MPH:
![Font Vehicle Gas Display device Technology]()
The K5 intercooler is doing a nice job of keeping the IAT low - this is better than the IATs on my 2021 Forte GT 1.6T that has a larger aftermarket intercooler!
I have a feeling this is due to the PCV system differences between the 1.6T and the 2.5T.
at 40 MPH:
At 45 MPH:
At 55 MPH:
The K5 intercooler is doing a nice job of keeping the IAT low - this is better than the IATs on my 2021 Forte GT 1.6T that has a larger aftermarket intercooler!
I have a feeling this is due to the PCV system differences between the 1.6T and the 2.5T.
I have a question, how much dirtier is the air flowing into the engine than with the factory filter set up? I always hear that less restrictive air filters will funnel more air into the engine but also filter less dirt and dust.
Interesting question.
A cone filter flows more air by virtue of it's size. If you simply measure the square inch size of the factory filter and compare it to the K&N cone filter you will find the cone filter has nearly TWICE the filter area for air to flow through.
I'd have to go get the numbers but I think the stock filter is @55 sq.in. While the K&N filter is @111 sq.in.
Do you live in a dusty or sandy climate in which you have to worry about MICRON-sized particles (which, if injested by an engine 99.9999% go right out the exhaust)?
From a website on this matter.
"Most of these amateur air filter tests are conducted on new filters where the smallest pores haven’t been plugged. So the tester injects extremely fine particles and measures how many of those particles pass through the filter media’s pores. Does that result mean anything? No.
It only means that on day one of use, one filter may outperform another filter. But is the test valid in the real world where larger particles plug the smallest pores first? If those “failed” filters had been in use for a week, their smallest pores would have been plugged and that same failed filter would be even more efficient than the “passing filter.”
Air filter manufacturers aren’t stupid
All automotive air filter manufacturers known what the ISO and SAE tests are and they manufacture their filters to pass those standards. They have way too much liability at risk to not pay attention to those filtration standards.
Air filter manufacturers use different filtering materials for each vehicle design. Some incorporate a mix of cellulose and synthetic fibers for a certain make and model, but change the ingredients for a different engine.
If the air filter tester isn’t using ISO or SAE testing procedures, then their tests aren’t accurate."
-Something interesting came up on the Forte GT - it has been found that Kia blocked most of the particles from getting to the intake filter by using a plate that forces the air to go around it and the particles don't make the journey. What happened is that owners who installed the Velossa-Tech big mouth intake (which removes that plate and allows incoming air to go straight to the filter) found their filters were getting dirty VERY quickly!
-K&N has been around a LONG time. Are they good? That question is answered many ways...depends on who is answering it. I seriously doubt K&N would be as popular as they are if their filters caused problems. I've used K&N filters on many of my cars for as long as 8 years and never had a problem. I also have never cleaned a K&N filter because I replace them instead of cleaning them - that's just my way.
____
Here's a typical ASININE youtube video - as if the K&N filter is the fault:
Why K&N Air Filters Are Bad For You - YouTube
I would say the filter was doing it's job of keeping trash out. The owner was negligent - for the dirty filter and for not keeping the filter on - not K&N.
Got the K&N intake in yesterday. It is not a simple install!
The heat shield needs to be cut down - it is made for the taller Sorento so you need to cut the top down 3/4" - I'm in the process of cutting it down to get it to fit under the hood.
The heat shield box mounts perfectly but you need to cut a small section of the battery tray plastic:
![Automotive tire Automotive design Motor vehicle Personal luxury car Gauge]()
I had cut off 1/2" off the top of the box but the box is just hitting into the hood insulator so I'm adjusting the cut (3/4" total) and modifying the box to make sure it doesn't damage the hood insulator. Will be cutting away the metal above the tape:
![Automotive lighting Wood Automotive exterior Hood Vehicle door]()
The tube and filter assembly are a perfect fit - I have them in the car so I can drive it:
![Hood Car Vehicle Motor vehicle Automotive tire]()
Once I get it done I'll take some more pics.
The heat shield needs to be cut down - it is made for the taller Sorento so you need to cut the top down 3/4" - I'm in the process of cutting it down to get it to fit under the hood.
The heat shield box mounts perfectly but you need to cut a small section of the battery tray plastic:
I had cut off 1/2" off the top of the box but the box is just hitting into the hood insulator so I'm adjusting the cut (3/4" total) and modifying the box to make sure it doesn't damage the hood insulator. Will be cutting away the metal above the tape:
The tube and filter assembly are a perfect fit - I have them in the car so I can drive it:
Once I get it done I'll take some more pics.
Finished cutting the heat shield so that it clears the hood insulation pad. Sure wish K&N would make an intake for the K5 GT!
Front view:
![Vehicle Motor vehicle Automotive design Automotive exterior Personal luxury car]()
Drivers- side view:
![Hood Motor vehicle Automotive design Car Auto part]()
Passenger side view.
![Hood Motor vehicle Automotive design Vehicle Automotive exterior]()
It sounds good when you get on it. When the RCV opens (AKA BOV) you can definitely hear the SSSSHHHHH...
Front view:
Drivers- side view:
Passenger side view.
It sounds good when you get on it. When the RCV opens (AKA BOV) you can definitely hear the SSSSHHHHH...
When I ran the car without the heat shield in place I could really hear the intake sounds. The heat shield effectively muffled the intake sounds in the cabin - you can now only hear the intake sounds in the cabin at or near WOT, you can only hear all the intake sounds from in front of the car.
What about cutting the shield vertically at the larger diameter end of the cone filter? Still retains the heat protection from the engine while opening up the sound to the cabin.
Definitely doable - just like running the tube/filter without the heat shield. I do like the overall quiet and then loud intake noise when "on it" too.
What are your software readings telling you now that you've installed the intake with and without the heatshield?
Since installing the K&N Intake the ambient temperatures haven't reached near the high 70s so I'm holding off on checking the IATs. Not until this Wednesday, 22 Mar, is the weather forecast to be in the high 70s again.
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