K & N Drop-in Filter

Discussion in 'Product Reviews' started by SRTTom, Jun 13, 2012.

  1. SRTTom

    SRTTom Member

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    A test was recently run comparing the horsepower and torque of a SVT 2012 Mustang GT using an OEM paper filter and a K & N filter.

    The results? The paper filter (when new) outperformed the K & N.

    Dyno runs:

    Stock Filter
    381.8HP 372.2TQ
    375.1HP 371.9TQ
    376.1HP 369.3TQ

    K&N Filter
    377.2HP 368.5TQ
    373.0HP 363.7TQ
    368.0HP 361.7TQ

    Read the entire comparison test here:

    http://www.svtperformance.com/forums...lter-test.html
     
  2. Muscle Car Memories

    Muscle Car Memories New Member

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    Wow, that just goes to show that manufacturers do engineer these cars to get the max horsepower they can out of them in the stock set-up however I own a 2012 Camaro SS and a independent test was done on one comparing horsepower with stock air filter vs K&N, the result was almost a 10hp gain over stock. I was floored after reading that and went straight out and bought a K&N. I do think alot of times that the Cold Air Intakes are a waste of money if your looking for any real performance gains.:smileup:
     
  3. cdahl383

    cdahl383 Senior Member MOTM Winner!

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    I've had a K&N drop in in my car for a while now. I noticed no gain or loss in power, though I doubt I'd feel a 3-4 hp gain or loss over stock anyway. I did notice better MPG's though. I think its a good product, it flows better than stock, but its nothing magical.

    People also argue that K&N's let a lot more crap into your engine compared to a paper filter. I'm not doubting that at all, but I have yet to see an engine failure at 150,000 miles or something that was caused by the use of a K&N air filter. My point is I think they do let a little more stuff in, but I dont think it really affects anything negatively either.

    People spend $300-$400 on CAI's that are really WAI's and gain little to nothing so I figure $45 for a filter that gives slightly better MPGs isn't that bad.

    Interesting test results though. I've seen that floating around before. Some tests on other cars show gains as stated above. Its hard to make any sense of it really.
     
  4. grandolph

    grandolph Member

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    After having a Airaid CAI on my car for a short while, I decided to go back with my stock box and K&N, so far the car performs the same, just quiter, the way the factory set up is designed, I doubt I will go back to a CAI unless it is a better design than what is currently available.
     
  5. BlueStreak2012

    BlueStreak2012 Active Member

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    well aint that a load of caca,i thought K&N would put a bit more pep in my babies step,oh well,i can deal with better gas mileage and if it helps her breathe a little easier then so be it.
     
  6. cdahl383

    cdahl383 Senior Member MOTM Winner!

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    Haha, caca! Yeah I didn't feel much difference good or bad, just noticed better gas mileage.
     
  7. Matt W

    Matt W Member

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    Just put a K&N filter in the car two days ago.

    After two days here are my impressions. Echoing Carl on some of his points.

    I noticed a gain in MPG, close to 1.

    I also felt like the car was a tad more responsive. Not saying I could feel any gain in HP by any stretch, just that the car felt like it was breathing better if that makes any sense.

    Had my wife drive it, and asked her if she noticed anything. She echoed the same thing thought it seemed a little more responsive.

    In my opinion with the filter or a CAI for that matter, if you gain 1-2 MPGs the thing will pay for itself in time.
     
  8. cdahl383

    cdahl383 Senior Member MOTM Winner!

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    Very true, never really looked at it like that, but gaining 1-2 mpg over a period of time would help to pay itself back. Especially when premium is hovering around $4.00 a gallon now!
     
  9. Matt W

    Matt W Member

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    Carl-

    Was at Pep Boys when I picked up the K&N filter. Guy pulled up in an SRT as I was leaving. We commented on each others cars. He asked to see under the hood. I popped it. He asked if I was thinking about getting a CAI. Told him yeah but was going to try out a drop in filter first. He looked at the air box and said, it was very similar to the SRT set up but did seem a little more restrictive.

    His impression was the CAI he had put in his car would help with MPGs a bit but wasn't convinced it did anything for HP based on the fact the SRT set up was pretty close to a CAI as it was.

    I do think though that a 1-2 MPG increase does make it worth it though. That breaks down to about 19 more miles to the tank if my math is right. And like you said, at 4.00 a gallon that makes it become cost effective.
     
  10. cdahl383

    cdahl383 Senior Member MOTM Winner!

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    That makes sense. I felt a slight difference in throttle response/power when I added the SRT airbox and removed my stock R/T airbox. The SRT definitely allows more air in compared to my stock box, plus the K&N filter is also a little better flowing that a stock paper element. But seeing how the SRT's already come with a good airbox design from the factory, I can see how the CAI may not have added a very noticeable increase in power over the stock setup on that car.

    Another way of looking at it is instead of saving money and gaining MPG's, you get more WOT blasts per gallon now since you use less while cruising around haha!
     
  11. Matt W

    Matt W Member

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    Carl-

    I thought the same thing about WOT....

    Although I think that may be exactly the reason some people don't save gas after installing the intake. They may feel that little bit of throttle response and just lay into it for more..
     
  12. cdahl383

    cdahl383 Senior Member MOTM Winner!

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    Haha that's me all the way! Its too much fun now to drive slow!
     
  13. Keith392

    Keith392 New Member

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    I have run K&N drop in filters for years on all of my vehicles. I always noticed better MPG and throttle response. Nothing real big but noticeable. My 2005 Dakota has 190k on it with no engine issues. My son's 1998 RT Neon had 230k when he sold it also with no engine issues. When I bought my 2016 scat pack, the K&N drop in filter was my first mod a couple days after I took delivery. I am a believer.
     
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  14. wvhemis

    wvhemis Well-Known Member Site Supporter Level 5 MOTM Winner! Military

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    As am I....
     
  15. wyo.hemi

    wyo.hemi Active Member MOTM Winner!

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