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K&N Cold Air Intake Kit: Increase Acceleration & Towing Power, Guaranteed to Increase Horsepower up to 14HP: Compatible with 4.0L, V6, 2008-2019 Nissan (Frontier, Xterra, Pathfinder), 63-6014

4.5 4.5 out of 5 stars 284 ratings

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Roto-Molded

Purchase options and add-ons

Brand K&N
OEM Part Number 63-6014
Shape Oblong
Product Grade
Replacement Part
Fit Type
Vehicle Specific Fit

About this item

  • GUARANTEED INCREASE IN HORSEPOWER & TORQUE: K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine and giving an estimated increase up to 14HP
  • HEAR THE GROWL: K&N’s intake systems allow your engine to breathe and sound as it should- your engine will growl on acceleration and return to quiet once at speed
  • DYNO TESTING YOU CAN TRUST: K&N air intake horsepower/torque testing is performed on wheel-based dynamometers and the reports are include with each intake system
  • BETTER TOWING: Air intake kit improves acceleration and uphill performance when towing by improving throttle response and overall horsepower and torque
  • FEATURING K&N’s SIGNATURE, REUSABLE AIR FILTER: Combines 4 layers of pleated, breathable cotton with K&N’s red filter oil to absorb dirt and dust particles, allowing clean air to continue flowing into your engine, only needs cleaning every 100,000 miles under normal highway driving conditions
  • DURABLE ROTO-MOLDED INTAKE TUBE & CUSTOM HEAT SHIELD: A high-density polyethylene (HDPE) rotationally-molded intake tube helps increase the volume of airflow to your engine, while the heat shield helps protect intake air from the high temperature of your engine bay
  • PREMIUM ENGINE PROTECTION FROM A TRUSTED BRAND: K&N air intake will not void manufacturer vehicle warranty & No-Hassle Lifetime Limited Warranty protects for the life of your vehicle

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From the manufacturer

Why a KN Cold Air Intake is a Great Choice

How Does a Cold Air Intake Work and Why Should I Replace the One That Came With My Vehicle?

In a standard air intake system, air passes through a disposable paper filter and then flows into the engine through a complex system of tubing. K&N cold air intake systems provide a less restrictive path for airflow, increasing the volume of cool, oxygen-rich air into your engine. A performance air filter is paired with specially designed tubing and a custom air box or heat shield (engineered to protect the intake air from the heat of the engine), which in combination deliver a guaranteed increase in horsepower and torque.

Legendary K&N Quality & Reliability

K&N Cold Air Intake Guaranteed to Increase Horsepower and Torque

K&N Intake Kit Provides More Engine Growl

K&N Cold Air Intake System Proudly Made in the USA

Increased Horsepower & Torque- Guaranteed

Yes, K&N intakes really do increase horsepower and torque; in fact, it's guaranteed. Each intake kit undergoes significant testing to help ensure that the air filter and intake tube are positioned to deliver large increases in airflow and horsepower.

Less Restriction = More Engine Growl

By removing excess stock baffles, you get to enjoy a satisfying engine growl on acceleration that returns to quiet once at speed. The amount of growl is all in your hands… or should we say feet. Growl while accelerating on the open road and return to quiet as you drive through your neighborhood.

Proudly Made in the USA

K&N products are designed and manufactured on-site, and all of our Cold Air Intakes are made in the USA. K&N is headquartered in Riverside, California, and also operates facilities in Grand Prairie, Texas. Our US based, knowledgeable customer support staff is available to assist you with any questions or concerns.

K&N Engine Air Filter- Nothing Beats the Original

No Substitution for the Original- The Difference a K&N Filter Makes in Your Vehicle

Increased performance starts with K&N’s reusable, air filter, which combines layers of pleated, breathable cotton with K&N’s signature red filter oil. Paper air filters, while efficient, can become quickly clogged as their pores fill with dirt and debris. K&N’s oiled cotton filter absorbs dirt and dust particles rather than physically blocking them. The tacky, oiled particles that collect in the filter become an asset to the filtration rather than an obstacle, capturing new particles entering the system while still allowing a high volume of airflow to pass through. This allows clean air to continue flowing into your engine.

Unlike disposable paper filters, which typically last for 12-15,000 miles before they must be replaced, the high-performance K&N filter included with your intake can go up to 75,000 miles before needing to be cleaned (under normal driving conditions).

K&N Cold Air Intakes- Frequently Asked Questions

K&N Intakes In House Dyno Testing

K&N Intake System Engine Protection

K&N Intake System Rotomolded and Aluminum Tube

K&N CAI Heat Shield and Enclosed Air Box

Why is Dyno Testing Important & How Can I Tell if It’s Accurate?

K&N's air intake horsepower/torque testing is performed at our in-house facilities in Riverside, CA on wheel-based dynamometers and help provide a power estimate that is likely to more closely reflect real-world conditions than an engine-based dynamometer. K&N’s standard testing is designed to measure relative power differences on a vehicle with and without K&N products installed, and SAE (Society of Automotive Engineers) correction factors are utilized to help ensure accuracy. If you notice horsepower claims from other manufacturers that seem too good to be true, we encourage you to do your own research. Check the dynamometer reports for vehicles, dates tested, and if correction factors are used.

How Does a K&N Intake Protect Your Engine?

Most disposable paper filters create a large amount of airflow restriction, as the openings in the filter media have to be extremely small to filter efficiently—which slows airflow. Because dust accumulates on the surface of the disposable filter and blocks the openings in the media, the filter will typically become increasingly more restrictive to airflow over time. Conversely, K&N oiled filters are engineered to become more efficient over their recommended service life as dirt and contaminants are integrated into the filter media, while still allowing a high volume of air through to the system. This allows you to continue to get the performance you expect from your K&N intake, while also being able to rely on the cutting-edge efficiency and protection that a K&N oiled air filter provides.

What's the Difference Between a Roto-Molded and an Aluminum Intake Tube?

Both a Roto-Molded and an Aluminum Intake Tube from K&N provide the same increase of air flow to your engine. It all comes down to how you want it to look in your vehicle. If you enjoy a more custom look under the hood, the Aluminum Tube is a great choice.

What Does the Heat Shield Do and Is That Better Than a Closed Air Box?

Both the custom heat shield and HDPE air box help protect the incoming air from the heat of your engine. They both have unique features and which one you choose is a personal preference based on those features. High-performance drivers may want an open filter element and heat shield for even greater airflow. Off-roaders may prefer an intake system with a custom air box, which helps protect against dust, dirt, and moisture and offers additional filter protection from extremely dirty environments or water crossings. Options with an enclosed air box give you the freedom to adventure while offering easy access to the air filter for quick cleaning and maintenance — no special tools required.

KN Intakes are Easy to Install

Easy to Install

Installing an intake kit might seem intimidating, especially if it's your first DIY car modification, but thankfully you don't have to be a seasoned mechanic to successfully install a cold air intake yourself. While every kit is slightly different (since they are designed to be a perfect fit in the engine bay of specific year/make/models), installation can typically be completed in 60 minutes or less and requires only simple hand tools. Detailed, step-by-step instructions are included with each kit.

Tools Typically Needed for Installation

  • Ratchet
  • Extension
  • 10mm socket & 14mm socket
  • Allen key
  • Flat blade screwdriver
  • Phillips screwdriver
  • 10mm wrench
  • Pliers

Product Description

K&N air intake systems are engineered for increased performance, outstanding durability, and sleek aesthetics—and are available in an assortment of finishes and powder coatings. K&N’s state-of-the-art High-Flow Air Filter helps to shield your engine from contaminants, while a meticulously engineered aerodynamic tube design contributes to a guaranteed increase in horsepower and torque. K&N air intake systems are designed to improve acceleration, towing, and throttle response while providing world class protection for your engine. Our intakes are dyno-tested and provide more airflow compared to OEM intake systems. K&N intakes are easy to install and maintain with air filter cleaning required only every 100,000 miles. Replacement Air Filter: RU-1014

Vehicle Fitment: 2008-2019 NISSAN Frontier; 2008-2015 NISSAN Xterra; 2008-2012 NISSAN Pathfinder

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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K&N Cold Air Intake Kit: Increase Acceleration & Towing Power, Guaranteed to Increase Horsepower up to 14HP: Compatible with 4.0L, V6, 2008-2019 Nissan (Frontier, Xterra, Pathfinder), 63-6014


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What's in the box

  • K&N 63-6014 AirCharger Performance Air Intake System
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    Price$299.99-13% $349.99
    List:$399.99
    $299.99-13% $349.99
    List:$399.99
    -15% $299.99
    List:$352.91
    -13% $347.30
    List:$399.99
    Delivery
    Get it as soon as Tuesday, Apr 2
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    Get it as soon as Tuesday, Apr 2
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    Customer Ratings
    Easy to install
    4.3
    4.4
    3.7
    3.8
    Value for money
    3.6
    4.0
    3.3
    4.3
    Mileage
    3.5
    3.9
    3.2
    4.1
    Sold By
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    compatible vehicles
    car
    harley davidson
    car
    material
    Alloy Steel
    Carbon Fiber, Cotton, Polyethylene
    Alloy Steel
    Polyethylene, Aluminum, Cotton, Carbon Fiber
    Other
    model number
    63-6014
    77-3065KP
    57-2514-4
    77-1578KP
    63-3065
    63-6019
    fit type
    Vehicle Specific Fit
    Vehicle Specific Fit
    Vehicle Specific Fit
    Vehicle Specific Fit
    Vehicle Specific Fit
    Vehicle Specific Fit
    shape
    Oblong
    Oblong
    Oblong
    product grade
    Replacement Part
    Performance Part
    Replacement Part
    Replacement Part
    Performance Part
    Replacement Part

    Looking for specific info?

    Customer reviews

    4.5 out of 5 stars
    4.5 out of 5
    284 global ratings

    Customers say

    Customers like the sound quality, ease of installation, performance, and quality of the engine air filter. For example, they mention it sounds like a large turbo, it adds some horsepower, and the instructions include pictures for every step. That said, they appreciate the value. That being said, opinions are mixed on the fit.

    AI-generated from the text of customer reviews

    84 customers mention73 positive11 negative

    Customers like the sound quality of the engine air filter. They say it sounds like a large turbo, has a nice little growl, and has more horse power. Some customers also mention that the filter is easy to install.

    "...It isn't LOUD by any means, but it does sound better. Sounds more like my custom G35 now...." Read more

    "...These things sound mean...." Read more

    "...in about 40 minutes (if you figure out the breather-hose issue), sounds great, looks good, and without the benefit of a dyno, I'd say it delivers..." Read more

    "...Have had it in for a few months now and it sounds perfect. You can hear the intake sucking in the air when you hit around 3 or 4 thousand rpm...." Read more

    60 customers mention52 positive8 negative

    Customers find the installation of the engine air filter to be very easy. They mention that the instructions are okay, and the kit was complete. Some appreciate the pictures for every step.

    "Purchased 7 months ago. Relatively simple install...." Read more

    "...Bottom line: Installs in about 40 minutes (if you figure out the breather-hose issue), sounds great, looks good, and without the benefit of a dyno, I..." Read more

    "Easy install probably spent about an hour assembling it and installing it in my 2010 nissan xterra...." Read more

    "Easy to install, product fits like a glove and I had it installed in about 30 minutes, with total time spent on it right at an hour from opening the..." Read more

    44 customers mention39 positive5 negative

    Customers like the performance of the engine air filter. They say it adds some horsepower, feels more power and acceleration, and improves power. Some customers also mention that the performance has increased by 100%. They also report an immediate difference in both power and mileage. Overall, most are satisfied with the performance and recommend it to others.

    "...Noticed I got up to speed a little quicker and acceleration felt SMOOTHER. Remember it is just 15 HP so it is not a huge improvement...." Read more

    "...fit (almost, see below), and per my butt dyno, the claimed power gain is at least close which is unusual for a CAI, usually the cool sticker is..." Read more

    "...that engineers their product like an OEM, but it actually improves performance...." Read more

    "First, the good: Great sound, definite increase in power at 3750-5000rpm, and looks nice installed...." Read more

    38 customers mention31 positive7 negative

    Customers like the quality of the engine air filter. For example, they say it's great, works well, and is of good quality. Some mention that the results are better than expected. Overall, most are satisfied with the performance and quality of this product.

    "...Took me about an hour start to finish to install and the end results look and perform well...." Read more

    "...Can for sure feel the power. Noticed I got up to speed a little quicker and acceleration felt SMOOTHER...." Read more

    "This is a well-engineered bit of kit, I especially like the design of the heat shield with its cushioned seal...." Read more

    "...This particular K&N intake was well created...." Read more

    13 customers mention10 positive3 negative

    Customers like the value of the engine air filter. For example, they mention it's well worth the money, a great buy, and the best price. Some say that it'll fit their truck and is easy to install.

    "...Well worth the money!" Read more

    "...You can really hear it and feel it. Worth every penny. Stop reading this and go order it already. 2019 Nissan pro 4x" Read more

    "I got this at such a good price I couldn't resist buying it...." Read more

    "...Overall good product. To be honest, probably not worth the money, but not too much stuff is made for our trucks so we take what we can get and this..." Read more

    12 customers mention12 positive0 negative

    Customers are satisfied with the appearance of the engine air filter. They mention that it looks good, clean, and has a cushioned seal. Some appreciate the design of the heat shield. Overall, most are happy with the performance and ease of installation of the product.

    "This is a well-engineered bit of kit, I especially like the design of the heat shield with its cushioned seal...." Read more

    "...minutes (if you figure out the breather-hose issue), sounds great, looks good, and without the benefit of a dyno, I'd say it delivers the roughly..." Read more

    "Right out of the box this thing is big and very nice looking. You will need to put this together a bit...." Read more

    "...couple hours to install, came with all the hardware it needed, and looks clean. A little increase in power but much better sound" Read more

    4 customers mention4 positive0 negative

    Customers are satisfied with the completeness of the engine air filter. They mention that it comes with all the hardware needed, and was well packaged. Some say that it was a couple hours to install.

    "Fantastic intake kit. Took me about an hour start to finish to install and the end results look and perform well...." Read more

    "...note, not even minus a star, the instructions are okay, and the kit was complete, but I found that it had a lot of “using the provided hardware”..." Read more

    "It only took a couple hours to install, came with all the hardware it needed, and looks clean. A little increase in power but much better sound" Read more

    "...Quality material and workmaship, all parts came well packed (had a bad pevious experience with wrong clamp sizes)...." Read more

    16 customers mention10 positive6 negative

    Customers are mixed about the fit of the engine air filter. Some mention it's a perfect fit, while others say it'll need modifications to fit in a Nissan frontier.

    "...perfectly and double checked my work...net result, zero rattles, perfect fit (almost, see below), and per my butt dyno, the claimed power gain is at..." Read more

    "...that came with it, the hose that ties back into the PCV valve, was to small. I had to go down to my local auto parts store and get a hose that fit...." Read more

    "Easy to install, product fits like a glove and I had it installed in about 30 minutes, with total time spent on it right at an hour from opening the..." Read more

    "Right out of the box this thing is big and very nice looking. You will need to put this together a bit...." Read more

    Well Engineered and Legit power Gain
    5 Stars
    Well Engineered and Legit power Gain
    This is a well-engineered bit of kit, I especially like the design of the heat shield with its cushioned seal. I was a bit concerned after seeing another review claiming rattles given that non-OEM can propagate poor results. I was also concerned about fitment as the Amazon Garage claimed it wouldn't work on my 2009 CrewCab , short bed, 4x4, 4.0L Frontier. Took a chance as the 4.0 Xterra/Frontiers are nearly identical mechanically over their respective model years.I took my time installing, utilized all the sealing material, trimmed to fit perfectly and double checked my work...net result, zero rattles, perfect fit (almost, see below), and per my butt dyno, the claimed power gain is at least close which is unusual for a CAI, usually the cool sticker is about as effective. It seems some real thought and engineering went into this, it also tells me the stock setup was fairly restrictive. As another reviewer pointed out, the plastic tube reduces the chance for heat soak, and the heat shield is effective. I hemmed and hawed at dropping the $$'s on a CAI, but it turns out you get what you pay for, this time in a good way.As for sound, it's stock quiet at idle, a little louder (in a good way) in normal driving conditions, and obnoxious at WOT. At WOT I like it, my GF hates it, 'nuff said.The fitment caveat, kit comes with a replacement crankcase ventilation hose to replace the stock piece, it is about 6" too short, and half the diameter so you will be buying that elsewhere. Maybe why Amazon claims the kit doesn't work?? Otherwise, it's a perfect fit, but you'll need the 5/8's hose. Overall, very happy
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    Top reviews from the United States

    Reviewed in the United States on February 12, 2015
    Style: 50 State LegalVerified Purchase
    4 people found this helpful
    Report
    Reviewed in the United States on October 25, 2018
    Style: Roto-MoldedVerified Purchase
    Customer image
    5.0 out of 5 stars Noticeable power and mileage
    Reviewed in the United States on October 25, 2018
    Purchased 7 months ago. Relatively simple install. Upon starting I could immediately tell it was pulling air through the crack by your hood, where it was not before. Can for sure feel the power. Noticed I got up to speed a little quicker and acceleration felt SMOOTHER. Remember it is just 15 HP so it is not a huge improvement. The sound is honestly the best part. If my window is down I can hear it pulling air through the hood when accelerating. When you romp on it, it absolutely comes alive at 4000 rpm it's like a switch is thrown and you hear it working. It sounds like a demented leafblower! No joke , it is like this hollow whine that makes your hair stand up. Better if window is down though. Overall good product. To be honest, probably not worth the money, but not too much stuff is made for our trucks so we take what we can get and this is my hobby. Dyno tested at 230 hp to the ground with 3 inch lift and 32s. Believe the graph they give you. The gas mileage increase canceled out my lift and tires so about 2mpg in town. Was getting 16 now about 18 in town. If I took the lift and tires off I could probably get 20 with my bedcover down which is a great purchase as well (1-2mpg in town).
    Images in this review
    Customer image Customer image
    Customer imageCustomer image
    8 people found this helpful
    Report
    Reviewed in the United States on November 5, 2020
    Style: 50 State LegalVerified Purchase
    Customer image
    5.0 out of 5 stars Well Engineered and Legit power Gain
    Reviewed in the United States on November 5, 2020
    This is a well-engineered bit of kit, I especially like the design of the heat shield with its cushioned seal. I was a bit concerned after seeing another review claiming rattles given that non-OEM can propagate poor results. I was also concerned about fitment as the Amazon Garage claimed it wouldn't work on my 2009 CrewCab , short bed, 4x4, 4.0L Frontier. Took a chance as the 4.0 Xterra/Frontiers are nearly identical mechanically over their respective model years.

    I took my time installing, utilized all the sealing material, trimmed to fit perfectly and double checked my work...net result, zero rattles, perfect fit (almost, see below), and per my butt dyno, the claimed power gain is at least close which is unusual for a CAI, usually the cool sticker is about as effective. It seems some real thought and engineering went into this, it also tells me the stock setup was fairly restrictive. As another reviewer pointed out, the plastic tube reduces the chance for heat soak, and the heat shield is effective. I hemmed and hawed at dropping the $$'s on a CAI, but it turns out you get what you pay for, this time in a good way.

    As for sound, it's stock quiet at idle, a little louder (in a good way) in normal driving conditions, and obnoxious at WOT. At WOT I like it, my GF hates it, 'nuff said.

    The fitment caveat, kit comes with a replacement crankcase ventilation hose to replace the stock piece, it is about 6" too short, and half the diameter so you will be buying that elsewhere. Maybe why Amazon claims the kit doesn't work?? Otherwise, it's a perfect fit, but you'll need the 5/8's hose. Overall, very happy
    Images in this review
    Customer image
    Customer image
    3 people found this helpful
    Report

    Top reviews from other countries

    Jason
    3.0 out of 5 stars Good on performance but poor quality I find
    Reviewed in Canada on March 15, 2022
    Style: 50 State LegalVerified Purchase
    Customer image
    Jason
    3.0 out of 5 stars Good on performance but poor quality I find
    Reviewed in Canada on March 15, 2022
    At first, during installation, it was quite simply replacing and mounting all new bolts and brackets.

    However, when it came to installing the K&N intake housing onto the intake manifold, that’s when things started to get tricky.. Reference the picture attached.

    Also, after certain amount of mileage driven with it, a part of the intake housing cracked from one of the mount brackets and where the mass air flow sensor is located. (Reference other pictures)
    I believe it was caused by vibrations but still you would imagine getting a good quality pvc plastic cold air intake for the price you pay…

    I purchased this last April 2021 and already all kinds of damages

    K&N should probably rethink on how to improve the quality of this product
    Images in this review
    Customer image Customer image Customer image
    Customer imageCustomer imageCustomer image
    Mike H
    5.0 out of 5 stars Easy install, more power!
    Reviewed in Canada on September 29, 2017
    Style: Roto-MoldedVerified Purchase
    One person found this helpful
    Report
    Chris Sanders
    3.0 out of 5 stars Well built product but
    Reviewed in Canada on September 26, 2022
    Style: Roto-MoldedVerified Purchase
    Justin
    1.0 out of 5 stars Wrong M6 Bolts provided
    Reviewed in Canada on April 17, 2022
    Style: 50 State LegalVerified Purchase
    Customer image
    Justin
    1.0 out of 5 stars Wrong M6 Bolts provided
    Reviewed in Canada on April 17, 2022
    The product box arrived in pretty rough shape, however the contents appeared to be okay. However there is one issue, the sealed parts bag that was provided appears to have supplied the wrong hardware type, included should've been 6 M6 sized bolts that correspond with the provided nylon lock nuts. The bolts provided are definitely too small. Email sent to KN customer support.
    Images in this review
    Customer image
    Customer image
    Martin McFarling
    3.0 out of 5 stars MAF hole is incorrectly sized
    Reviewed in Canada on July 19, 2021
    Style: Roto-MoldedVerified Purchase