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K&N

K&N NextGen Cold Air Intake System: High-Flow Cotton Filter: Compatible with 2019-2026 RAM 1500; 50-1578

Based on 41 reviews
Condition: New
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$404.24
Holiday Deal · 5% off was $425.99

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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Nov 16
Order within 19 hours and 45 minutes

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At a glance

Condition
New
Style
NextGen
Model
50-1578
Weight
13.6 lb
Product Grade
New
Fit Type
Vehicle Specific Fit
Item Type Name
Cold Air Intake
In the box
1 Cold Air Intake System

Features 4

  • Dyno-Proven Performance: Dyno-proven to deliver a guaranteed increase in horsepower and torque on your engine's stock tune. Experience the exciting roar of your engine during acceleration, without any drone at cruising speeds.
  • NextGen Airbox: The NextGen hybrid airbox features an enlarged factory fresh air inlet that is designed to improves airflow, lower inlet air temperatures, and deliver more fresh air to the engine. The air box adds an extra level of protection from contaminants, helping provide more clean air to your engine.
  • Oversized Air Filter: An oversized air filter features an increased surface area and a radius-entry design, both engineered to increase airflow and enhance performance.
  • Large-Diameter Tube: The large-diameter, CAD-designed intake tube features strategically positioned air channels that increase airflow, boosting airspeed and delivering more air to your engine for added performance.

Description

This K&N NextGen cold air intake system is engineered for your RAM 1500 V8-5.7L F/I. A high-density polyethylene (HDPE) rotationally molded tube helps increase the volume of airflow by 36.51% to your engine and provides an increase of 19.94 horsepower and 19.93 torque with no tune required. This intake system is paired with a washable, reusable High-Flow LIFETIME Air Filter™ featuring oiled cotton filter media. The oversized, conical design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom designed NextGen air box helps protect intake air from the high temperature of your engine bay, and the entire system can typically be installed in less than 60 minutes.Compatible Vehicles:2019-2026 RAM 1500

Specs 17

Product Grade New
Brand K&N
Fit Type Vehicle Specific Fit
OEM Part Number 50-1578
Number of Items 1
Brand Name K&N
Model Number 50-1578
OEM Equivalent Part Number 50-1578

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

K&N Next gen: 5.7 HEMI
Style: NextGen
K&N next gen Installed on a 2022 Ram w/ 5.7 HEMI It installs in minutes, takes minimal mechanical effort. It made the sound so much better, deep growl when you push the loud pedal down. I can really feel the extra power at about 45-55 mph when you accelerate. Don’t know about fuel efficiency, it’s a 5.7HEMI so, yeah I don’t care about fuel efficiency. ... show more
Reviewed in the United States on September 10, 2025 by Dan C.
Easy installation
Style: NextGen
Review Image by Timothy H Bishop
Just as described, easy installation also. I had an issue with one of the clamps not working but they were very good of handling the issue and got it resolved 👍🏻. I would recommend buying this item.
Reviewed in the United States on May 4, 2026 by Timothy H Bishop
Definitely a must
Style: NextGen
Review Image by Elbk503
Let's the big ol v8 breath better. sounds and feels alot better and responsive Definitely can feel the power.the mpgs have stayed the same so far intown driving ..took me about 40min to put on,really takes longer to take the stock intake apart plus looks great under the hood k&n definitely a must
Reviewed in the United States on July 22, 2026 by Elbk503
Disappointing. Think twice before purchasing this.
Style: NextGen
Review Image by Steven K.
After reading other reviews on this product I was in two minds about purchasing this but I’ve bought several K&N filters for motorcycles in the past and never had a problem so I went ahead. Turns out I should have paid more attention to the other reviews. I ordered for a 2024 Ram 1500 5.7. I had the same problem as others with fitment of the CCV and temp sensor. Location of CCV was too close to temp sensor and CCV hose kinking because to close. Temp sensor outlet required some butchering of the stock inlet to use the sensor mount. And more still the instructions that came with the kit were for a KIA! What’s happened to K&N quality control? Very disappointing. I really did not expect this from K&N. I did not attempt to contact K&N to resolve these issues so I have no idea about how helpful or not they would be. I already had the stock air box and everything removed before it was delivered so I persisted with it, if I hadn’t had already removed I would have shipped this back to K&N. For anyone wishing to purchase this, first, do not remove your stock gear until it arrives in case you cannot do the mods to make this work, secondly, be prepared for some extra modifications. ... show more
Reviewed in the United States on July 12, 2026 by Steven K.
Does what it says 😤
Style: NextGen
The Next Gen is awesome! Install truly is a breeze. Just take your time, nothing fancy. This air box completely and totally changed the sound of my hemi. It gave it a gutter roll growl from the front end. And the torque and horsepower gain is very noticeable.
Reviewed in the United States on December 18, 2025 by James K.
Improved performance!
Style: NextGen
Review Image by Terral Martin Jr
Definitely improved power and mpg. I normally get around 20 to 21 mpg on a road trip and have noticed 25 mpg with the new intake. Would purchase again and recommend! I do have it paired with Borla Pro XS muffler. The overall performance is noticeable.
Reviewed in the United States on June 23, 2026 by Terral Martin Jr
Did not go together well,
Style: NextGen
1. The fitting that came with it for the CCV did not fit in the housing. I had to file it down to make it fit. 2. The sensor sits in the fitting very loosely. Most likely will come loose eventually and throw codes. 3. Both connections are in an awkward spit / to close together. I had to trim the hose to make it fit- otherwise, because of the angle- it would kink. 4. The boot is about 1 inch to small. Other than all that, it was ok. ... show more
Reviewed in the United States on January 19, 2026 by Jeffrey
Easy installation
Style: NextGen
Easy to install, it looks great, you will feel a small improvement...
Reviewed in the United States on April 5, 2026 by Carlos
How it works
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