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K&N 57 Series FIPK Performance Cold Air Intake (97-06 4.0L Wrangler TJ)

Market Price $304.74 You Save 13% ($39.75)
Our Price

$264.99 (kit)

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  • Item J12220
  • MPN# 57-1514-1

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Features, Video & Details

  • Improves Horsepower and Acceleration
  • Filters Out Harmful Contaminants
  • No Computer Tune Required
  • CARB EO Number: D-269-34
  • Simple Bolt-On Installation
  • Fits 1997 - 2006 TJ Wranglers with 4.0L Engine

Review & Installation Video

Review & Install Video

The K&N 57 Series FIPK Performance Cold Air Intake is for those of you who that have a four-liter, 1997 to 2006 TJ, and are looking to add a cold air intake for a little bit more power, a little bit more fuel efficiency, and a little bit more sound from underneath the hood, especially when you jump on the throttle. Now, in theory, any time you help an engine breathe in or out a little bit more freely, you are gonna get some more power. And that is going to be true with this cold air intake. You are gonna pick up a couple of horsepower. Now in general, a cold air intake is going to give you horsepower at the very top of the RPM range, which isn't an area that you see all that often in your TJ. So I don't think you're going to feel huge gains from this cold air intake in the seat-of-the-pants dyno. However, you are going to get some additional noise from under the hood and you are going to get a little bit of mile per gallon gains from this because you are gonna to get a little bit more air into the engine. Now the reason you're not going to see huge horsepower or torque gains all the way through the RPM range is because that I6 has been around for a very long time and it is very much optimized right out of the factory. So you are going to see some gains, but they're not going to be massive. The other thing to note with any kind of cold air intake, this one included, is that if you take your Jeep off-road a lot in an area where there's a lot of water, you run a lotta mud, do a lotta water crossings, this is going to eliminate that factory aquabox out of your air intake system so you're going to eliminate one level of protection against sucking air into the engine and potentially causing damage via hydrolock. So keep that in mind as well. If you are somebody who's just running a lot of drier trails, you can certainly get away with something like this, although some people will say that the more open element K&N filter will let a little bit more dust and particulate into the engine. So that's something to consider as well. In general, a cold air intake is designed to pull colder air, but no matter what, unless you're installing a snorkel, you're still pulling air from underneath the hood of your Jeep from within that engine bay. TJs are known for a lot of heat soak, so it's very hot under there, but this is going to help get a little bit more air into the engine and it should be a little bit cooler partially thanks to this piece of the cold air intake here that is designed to allow it to pull the coldest air from that front corner of the fender as possible instead of from the center of the engine bay which, of course, is going to be a little bit warmer. This is going to be a setup from K&N, so you're getting, of course, a K&N air filter which is going to be washable and re-oilable. This is, or should be, at least, the last filter that you'll ever have to buy for your cold air intake because you can just clean it out and reuse it over and over and over again. Now as far as cold air intakes goes, this one is going to be around the middle to the lower end of the price range. There are some intakes that have a fully enclosed air box, and those ones are going to be more because they're gonna have more material. There are also some that have a metal intake tube instead of the plastic one that's included with this cold air intake. Those are also going to be more expensive. But if you're looking for something a little bit more basic, not quite as many features, and save a little bit of money, this is gonna be a good way to go. So I touched on a little bit of the construction of this cold air intake already, it has this plastic intake tube, it's also going to come with all of the couplers, the hardware, and the clamps that you're going to need to get it attached to your Jeep. So you have the intake tube here, you also have a nipple built right into it for your vent, and you also are going to have a spot where you can install your ambient air temp sensor if you have one of the later model TJs that is equipped with one. Of course, here you have a bit of an air box. It is really only going to be three-sided and that is designed to draw the coldest possible air into the engine, and this does also come with some weather stripping that you can put around the outside of it, it's gonna finish off the look of that box a little bit further. Of course, as we said, this does come with one of K&N's conical air filters that is going to be washable and rechargable, re-oilable, so you can use it over and over again. As far as the install goes, I am gonna give this a one out of three wrenches. This is probably going to take you less than an hour to get installed on your TJ, and anyone can do this in their driveway with just some traditional hand tools and a socket set. The first step is, of course, going to be removing that factory air intake that you have on your Jeep. So you'll remove the clamp and the intake tube from your throttle body, you're also going to unbolt the rest of the intake box that comes on your Jeep from the factory in order to make room for your new system. Now in order to install this system, you are going to have to take your ambient air temp sensor out of your factory tube. If you have one, be careful, don't break it. Go ahead and insert it into your new tube as you're installing it onto the throttle body. You'll wanna work your intake box over top of your intake tube, get that all bolted down in place. And finally, to top everything off, install that new air filter onto your intake. So as I mentioned before, this is a moderately priced cold air intake coming in at right around 265 bucks. The ones with a fully enclosed air box, more material, more expensive. The ones with a metal tube, also going to be more expensive to produce, more expensive to purchase. So this is going to a little bit less expensive than some of the other options out there, but it's still gonna get the job done. So if you're looking to get a cold air intake on a bit more of a budget but still get one that's gonna do everything you need it to do, I do think this is a pretty good value. So if you're looking for an affordable cold air intake for your 4.0 TJ, I definitely recommend this one from K&N, and you can find it right here at extremeterrain.com.

Increased Performance. The K&N FIPK is designed to increase performance in your fuel injected stock engine by using air filtration that lessens the amount of resistance in air flow. The low resistance results are evident in throttle response. The adapters are also designed to add a radius entry that lowers restriction and allows the engine to take in even more air. This true evolution air take technology consistently achieves horsepower gains in every atmosphere. You replace the entire air intake tract, which isolates the cold air and directs the air through the unique chamber system. In some cases horsepower has been increased by more than 26, while torque has risen as much as 23 feet per lb.

Filters Out Harmful Contaminants. The supplied K&N Filter successfully filter's out harmful contaminants with it's unique layered design. K&N Air Filters are made up of layers of specially treated cotton gauze that are sandwiched between two epoxy-coated aluminum wire screens for durability. K&N uses a specially formulated grade of oil to treat the cotton gauze layers which causes a tackiness throughout the cotton's microscopic strands creating a powerful filtering media that ensures engine protection.

Additional Features. It was even exempted by the California Air Resource Board, under D-269-34, which says a lot about its performance and quality. This filter can help you increase power, increase torque, and even improve gas mileage at the same time. Covered by an incredible 10 year 1,000,000 mile warranty, this is a one-time purchase that will last you for life.

Application. This K&N Series 57 FIPK Performance Cold Air Intake is specifically designed to fit the 1997 - 2006 TJ Wranglers with 4.0L engines.

Note: Coupon codes cannot be applied to this product.

Fitment: 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 Details

What's in the Box
  • (1) Air Filer
  • (1) Intake Tube
  • (1) Heat Shield
  • Hardware
Installation Info
Will it fit my Wrangler?
  • TJ - 97, 98, 99, 00, 01, 02, 03, 04, 05, 06
  • TJ Rubicon - 03, 04, 05, 06
  • TJ Unlimited - 04, 05, 06

People Who Bought This Item Also Bought

Most Helpful Reviews

5/5
Easy Install Great Product!

Installed this in about an hour and a half (most of that time was spent looking for my ratchet set). The nuts that come with the intake are 10mm and my bolt on my radiator where the L bracket fit in was ...

Read More
Helpful (3)

5/5
K&N Intake

I received this Intake and was excited to install it! The product looked great and was an easy install. I purchased this product to increase the horse power when climbing hills in Colorado. The product ...

Read More
Helpful (3)

Overall Rating 4.8 out of 5 stars
Read All 34 Reviews

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2 Questions / 2 Answers

Ask a Question

Is this compatible with the 2.5L Jeep TJs?

TJM

  • Unfortunately, the K&N 57 Series FIPK Performance Cold Air Intake is specifically designed for the 97-06 4.0L Wrangler TJ only.

    TerriB

Helpful (0)

Is it possible? Hello, i have a question. My 04 Rubicon has the Safari snorkel installed, and it still has the stock air box. is there a way this could work with it to gain a little more HP? or should i just stay with the stock set up with stock filter? thanks

Brando

  • Snorkels require a sealed air box. The K&N FIPK (97-06 Wrangler TJ w/ 4.0L) would get rid of your sealed air box and you could not use your snorkel.

    XTHelen

Helpful (0)

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Customer Reviews (34) Write a Review

Overall Rating 4.8

out of 5 stars

Installation Time:Less than 1 Hour

  • Performance Gain 4.441176 4.4
  • Fit 4.764706 4.8
  • Bang For Your Buck 4.735294 4.7



  • 5/5

    Installation Time: Afternoon

    August 10, 2017

    Easy Install Great Product!

    Installed this in about an hour and a half (most of that time was spent looking for my ratchet set). The nuts that come with the intake are 10mm and my bolt on my radiator where the L bracket fit in was a 12mm. Other than that I needed two different size allen wrenches (4mm and 5mm) for the heat shield install and obviously a flat head. The bulk of your time will probably be spent taking out the old intake and screwing down the clamps for the new one. I did spend a good amount of time making sure the silver hose holder was positioned and tightened so there was minimal rattling of the filter. If I had to do it again it would probably take 30-45 mins. Definitely notice a horsepower difference when driving on and off-road. KandN also claims there's a sound difference but I couldn't tell unless the hood was up and I was in front of the air filter.

    RobertW

    Year: 2004Submodel: Wrangler Unlimited

    Helpful (3)

  • 5/5

    Installation Time: Less than 1 Hour

    April 03, 2014

    K&N Intake

    I received this Intake and was excited to install it! The product looked great and was an easy install. I purchased this product to increase the horse power when climbing hills in Colorado. The product install was quick and easy with the proper tools. It took me about 30 minutes to install this product. Once the Intake was installed I was able to get into 5th gear going up hills on the highway as I have over-sized tires on my Jeep. This product makes an amazing sound as you can hear the air going making an awesome intake tone. I highly recommend this product to anyone looking for an air intake system!

    beepinjeep

    Year: 2003Colorado

    Helpful (3)

  • 5/5

    Installation Time: Less than 1 Hour

    April 03, 2017

    Great product!

    Easy to install, throttle response is quicker. Still checking for any change in mpg change.

    MilamG

    Year: 2004Submodel: Rubicon

    Helpful (2)

  • 5/5

    December 19, 2016

    K N Filter for 2005 Wrangler

    Increasing pickup haven't noticed any gas mileage Improvement combined it with new throttle body BandB 62 millimeter

    Wrangler

    Year: 2005Submodel: Wrangler

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    September 09, 2016

    A few more hp

    My 2001 jeep wrangler has a little more zip getting onto highway

    DJ

    Year: 2001Submodel: Wrangler

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    August 16, 2016

    Boost

    Very easy install. Increase in HP right away. Will see if there is any fuel economy gained.

    SteadmanTJ

    Year: 2006Submodel: Wrangler Unlimited

    Helpful (2)

  • 5/5

    July 25, 2016

    Hive her more power mr scot

    Instal was straight forward in fact my wife wants to do hers by herself! I live in high altitude Colorado and there was an immediate noticeable increase in power and acceleration also adds a very nice intake noise to the engine note

    Bubbaduck

    Year: 2005Submodel: Wrangler

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    July 23, 2016

    Easy install and works

    Went from my Stock Air to this really functional Air System. Noticed system boost immediately, Install "Great", Materials "Great" Function "Sweet"

    SouthernEasy

    Year: 2005Submodel: Wrangler

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    June 21, 2016

    Product Review

    I think this product is talked up way too much...Yes, it does give you a beefier sound when you drive by people(I've gotten some looks.) However, if you do want to get the most out of your Jeep, go ahead and get this, I have seen a minor improvement in MPG.

    BDawg

    Year: 2005Submodel: Rubicon Unlimited

    Helpful (2)

  • 5/5

    April 21, 2016

    Bolt-On-Easy-Peasy

    Took about 1 and a half hours. Directions more clear than most, but the oft used phrase, "using provided hardware," was not always clear when it involved some specialty parts and the camera angle didn't show them. The installation sequence is easier if you depart from the directions and attach the silicon tube splicer to the intake tube before you attach it to the engine intake. The system is designed very well for an excellent fit. Increased horse power was very noticeable and it sounds good. Still calibrating for fuel efficiency gains.

    DBDweeb

    Year: 2004Submodel: Rubicon

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    April 06, 2016

    Good product.

    Easy install, less than an hour. Noticeable gains when accelerating. Would work great when paired with a throttle body spacer, upgraded exhaust and a programmer. Sounds pretty cool.

    Oilfieldtech89

    Year: 2003Submodel: WranglerWV

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    November 15, 2015

    K&N Intake

    This is an amazing improvement. You can definitely tell the difference when you accelerate. It sounds like a supercharger when you romp on it. Worth every cent.

    Wkehr1

    Year: 2005Petaluma, CA

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    July 03, 2015

    Breathe Right for Jeeps

    The difference could be heard as soon as I started the jeep. Before I ever hit the road, the increased airflow was impressive. On road performance is exceptional. I don't need a dynamometer to know that torque and horsepower have been added. At higher RPMs, my tj sounds badder than it ever has. This might be my favorite mod so far

    Sulli213

    Year: 2005Mars Hill NC

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    June 13, 2015

    More Power!

    First thing you notice is it looks & fits great. Then you start your engine & it sounds awesome. I couldn't wait to drive & when i did you can feel the extra power. Acceleration is so much better. A pure joy to have it in my 03 TJ I6!

    Pepino

    Year: 2003Newark, CA, USA

    Helpful (2)

  • 4/5

    Installation Time: Less than 1 Hour

    August 21, 2014

    essential add on

    this intake arrived with all the parts needed for the installation. it instal in under an hour with no drilling, welding, or any other modification necessary. it adds a nice sound, not too much to be annoying. performance gain is also a pleasant surprise.

    DEA798

    Year: 2000Boston, MA, USA

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    September 01, 2017

    Simple and easy

    I'm not that experienced with tools and it went on perfect. The hose from the intake tube to the front of the valve cover was a little short but it sounds and looks great. Noticeable gain in Horsepower.

    NicholasP

    Year: 2000Submodel: Wrangler

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    August 15, 2017

    K N Install and Performance

    Another great product ordered through Extreme Terrain that arrived on-time and as ordered. Fairly straight forward install with the majority of the extra time getting the tube connected to the air intake valve. Snug fit and awkward positioning. Much better power, quicker and makes the Jeep sound much better. Definitely recommend spending the bucks on this and is a must have add-on.

    BradS

    Year: 2006Submodel: Wrangler Unlimited

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    August 07, 2017

    Prrrs like a Kitten

    This intake added a noticeable gain in power and much cooler sound. I will still be changing the gear ratio, but I would recommend this product. I will also likely be purchasing the throttle body spacer as an added component.

    JohnD

    Year: 2004Submodel: Wrangler

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    July 25, 2017

    Great performance

    Very easy to put on, can tell the difference right away

    DarkKnight

    Year: 2006Submodel: Wrangler

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    July 22, 2017

    K N 57 Series FIPK Performance Cold Air Intake

    Easy install, great throttle response, a muffler will bring out the full potential .Its not loud under the hood. I think the price for all intake systems are a bit high for the components you get.

    knight4x4

    Year: 2002Submodel: Wrangler

    Helpful (1)

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