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K&N Series 63 AirCharger Cold Air Intake (18-20 3.6L Jeep Wrangler JL)

Item J126478-JL
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Market Price $561.99 You Save 45% ($252.00)
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$309.99 (kit)

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      Review & Installation Video

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Improves Horsepower and Torque
      • Greatly Increases Throttle Response
      • Delivers Unrestricted Air Flow
      • Built Using Computer-Aided Technology
      • Cotton Gauze Filter
      • Simple to Install
      • No-Tune Installation
      • Not CARB Certified, Thus Not Legal for Sale or Use in California
      • K&N Million Mile Limited Warranty
      • Fits All 2018-2020 Jeep Wrangler JL 3.6L Models


      Remarkable Cooling and Power Increase. Enjoy cooler, cleaner, and more powerful engine with the K&N Series 63 AirCharger Cold Air Intake. It’s all you need to keep your engine running smoothly while gaining as much as 12.50 horsepower at 4,630 RPM. It replaces your Wrangler's restrictive air intake to allow for even more cold air to provide superb cooling to the engine while keeping it safe from the damaging effects of dust and debris.

      No Tuning Required. This air intake has been precision-built using computer-aided technology. It increases your Jeep’s power using its stock tune to eliminate the need for custom tuning after installation. However, ExtremeTerrain highly recommends recalibrating its onboard ECU to get the best possible performance from this air intake.

      High-Quality Air Filter. This air intake features a conical air filter with a bigger surface area and dust capacity. It is made out of high-quality cotton gauze material and has been proven to capture more dust and debris to help keep your engine running smoothly for hundreds of thousands of miles more.

      Durable Roto-Molded Air Box. This cold air intake maximizes airflow with its high-quality, roto-molded air box. It has been designed to guarantee increased air intake to deliver superb cooling action that greatly enhances your engine’s performance. And with its black powder coated finish, the air box adds stunning appeal to your Wrangler's engine bay.

      Bolt-On Design. This cold air intake installs in about 90 minutes or less. It uses the factory mounting points on your Jeep’s engine bay without the need for any modifications.

      Backed by a Million-Mile/10-Year Warranty. The Series 63 AirCharger Cold Air Intake is guaranteed by a million-mile or 10-year warranty, whichever comes first, against defects in material or workmanship. Some conditions may apply.

      Not CARB Certified. This K&N Series 63 AirCharger Cold Air Intake is not CARB certified at this time. It may not be sold or used in California or other states where California emission regulations are adopted.

      Application. This K&N Series 63 AirCharger Cold Air Intake is designed for all 2018-2020 Jeep Wrangler JL 3.6L models.

      Technical Note. The K&N Cold Air Intake is not designed for vehicles equipped with a Body Lift.

      Fitment: 2018 2019 2020 Details

      MPN# 63-1576

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (21)

      Write a Review

      Ratings Summary

      4.8 out of 5 overall rating from 21 customers

      Installation Time: Afternoon

      Installation Cost: $100-$250

      • January 31, 2020

        5 2019 Wrangler - Sarah73 Installation Time: Less than 1 Hour

        Love it!

        I bought this to replace the factory one on my 2019 JL Wrangler Sport, 3.6 . I love it. My gas mileage has increased a tiny bit. I love the way it makes my Jeep sound. Definitely worth the price.

        Helpful (0)
      • January 23, 2020

        4 2018 Rubicon - ATS75 Installation Time: Less than 1 Hour

        Performance and some growl

        This is a nice modification for your jeep. I put it in my 18 JLU Rubicon. As others have said it definitely gives the jeep a notable difference in sound. It sounds good but can be a little obnoxious when the engine is under load climbing up hill. On that note the HP and Torque gains are noticeable and the jeep handles climbing up in to the mountains better than with the stock system. Going up I-70 out of Denver with the stock air intake made the jeep feel sluggish and it felt like it was struggling to maintain speed. With the KandN it really opened up the performance and gave the Jeep that little bit of extra it needed to get up the hills with out feeling like it was struggling. Have seen about a half mile per gallon increase in fuel economy. Was averaging 19.5 MPG combined and now in the same driving conditions I am seeing 20 MPG pretty consistently. My Rubicon is stock 4 door with steel bumpers, steel side steps and auto transmission. Installation was made easier with the video on the site.

        Helpful (1)
      • January 16, 2020

        5 2019 Wrangler - Adamm Installation Time: Afternoon

        Clean and Fun System.

        You ultimately pay for the quality and brand name with this system. It certainly opens up the 3.6, but it isn't going to wow you with gains. Slight MPG gain but nothing crazy. THE NOISE IS GREAT!! Snarls every time. Overall, my father enjoys it and I would consider it again.

        Helpful (1)
      • December 26, 2019

        5 2019 Wrangler - Stingraygrey Installation Time: Afternoon

        K N Series 63

        Easy set up ! Love the way it sounds !!! MPG is about the same but I'm loving the roar coming from under the hood now :)

        Helpful (1)
      • December 09, 2019

        5 2019 Rubicon - DevonP Installation Time: Less than 1 Hour

        Sounds great. Easy Install.

        The tricky part about this install is remove the old air intake. Watch the Extreme Terrain video for assistance. Once the old intake is out. The KandN goes in nice and easy. KandN guarantees that this will improve HP and torque. Others claim it also improves throttle response and gas mileage. I do not have any facts to support any of those claims, but I can say it feels like it. You can hear the intake sucking in air. The Jeep sounds more throaty and powerful for sure. Unfortunately, I have the Borla Climber Stinger exhaust and it sorta overpowers the sound of the intake. I 100 recommend this intake and I would buy it again.

        Helpful (1)
      • November 11, 2019

        5 2019 Wrangler - Godspeed Installation Time: Less than 1 Hour

        Sounds great!

        Sounds great and also got a little MPG back!! I have 33 with a 2in lift definitely recommend this!

        Helpful (2)
      • October 24, 2019

        5 2018 Wrangler - Jeepgirl

        Love it!!

        Sound is great and install was easy. So glad I ordered it!

        Helpful (1)
      • September 30, 2019

        5 2018 Wrangler - ChristianG Installation Time: Less than 1 Hour

        Sounds good

        Gives the engine a nice growl. Took 40 minutes to install.

        Helpful (1)
      • September 27, 2019

        5 2019 Wrangler - TomInColo Installation Time: Afternoon

        Nice little performance upgrade

        This is a fairly easy install. The KN directions are good, but there are a couple of places to be careful. Treat the sensor that you remove from the factory assemble very gently. The pictures were helpful. I installed this is just over an hour and I'm no mechanic, just an average guy with a decent set of tools. You need a torx and a couple of allen sockets to make this install easy. The unit adds an interesting note to the 3.6L motor.

        Helpful (1)
      • August 30, 2019

        5 2018 Wrangler - GOODGRIEF Installation Time: Less than 1 Hour

        2018 Wrangler JL

        just added to my Jeep easy install and sounds great dyno results that come with instructions said 12 hp increase

        Helpful (1)

      Questions & Answers (3 answers)

      3 Top Rated Questions

      Will this mod void the warranty? My Jeep is a 19 Rubicon UL. Thanks

      Does this affect the factory warranty?

      What does a tune mean? Can you do that with a Tazer? Or do you have to have it professionally tuned? What exactly is being changed to improve performance in the computer?

      • The tune being referenced is not necessarily a custom tune, no. A standard pre-loaded tuner would indeed enhance this cold air intake, just like it would enhance an otherwise stock Mustang. When it comes to custom tunes, custom tunes will be better than a preloaded tune, however a custom tune is only required when a product is advertised with a tuning being required.

      Helpful (0)
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Air Filter
      • (1) Intake Tube
      • (3) Clamps
      • (1) Coupler
      • (2) Fittings
      • Installation Hardware

      Will It Fit My Wrangler

      • JL Rubicon 2 Door - 18, 19, 20
      • JL Rubicon 4 Door - 18, 19, 20
      • JL Wrangler 2 Door - 18, 19, 20
      • JL Wrangler 4 Door - 18, 19, 20