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Banks Ram-Air Game Changer thumbnail
Learn how this intake does what no others can.
Learn how this intake does what no others can.
Banks Power

Sounds crazy but I'm seeing a gain of more than 3 mpg. Throttle response is much better. Impressed.

  Dallas B — Albuquerque, NM

Why You Need It

The Ram-Air intake system for the 2024 Duramax 6.6L helps the engine produce horsepower at lower RPM, sharpens turbo response, and improves fuel economy by improving air mass flow to the turbo. This is made possible by our patented electronics. Meanwhile, all competitors must retain near stock airflow or risk setting a check engine light.

Why It's Better

  • Only intake that improves mass air flow over stock
  • Improves turbo response
  • Improves fuel economy
  • Massive filter extends service life, fewer cleanings
  • Housing keeps out hot air
  • Housing increases air volume around filter
  • Connects to OEM hood scoop
  • Rubber elbow allow for engine movement
  • Increased turbo sound, no drone
  • Oiled or dry high efficiency filter
  • No check engine light
  • Includes Banks Air Mass Control Module
  • U.S. Patent 11,193,441

Helps engine produce horsepower at lower RPM

Thanks to a 45% reduction in pressure loss over the stock intake, air mass is increased into the turbo inlet. This denser air makes the turbo's job easier. Turbo lag is reduced and boost comes on sooner, widening the engine's working RPM range.
Wheel horsepower chart fort the Banks Ram-Air intake
Wheel Torque chart for the Banks Ram-Air intake
Wheel Horsepower
Wheel Torque

Not only does power come on sooner with the Ram-Air intake, but the turbo spins nearly 3,000 RPM slower increasing its efficiency and longevity. Turbo life is increased because it’s spinning millions of revolutions less over its lifetime.

Patented Electronics

The ECM (Engine Control Module) in your 2024 Duramax monitors air mass and pressure so closely that any deviation from stock results in a check engine light
Banks Air Mass Control Module used in the 2024 Duramax L5P

The new patented Banks Air Mass Control Module allows our engineers to design past this electronic limitation.

—U.S. Patent #11,193,441

Massive Airflow

In other words, all other competitive intakes must flow within a narrow airflow window near stock levels past the Mass Air Flow sensor, whereas these stock airflow design constraints do not limit us.
Cross sectionas MAF sensor for 2020+ L5P Ram Air Intake

Unrivaled Size and Capacity

The all-new Ram-Air cold air intake system's large organic shape eliminates all restrictions and turbulence to the turbo. The radical new design allows for a massive 58% gain in Mass Air Flow over the stock system.

The oversized filter has greater dust capacity giving you more miles between services and flows freely long after stock and competitors are clogged with debris.

The huge filter outlet smoothly tapers down providing the highest gains in air density.

Your Stock Intake is Restrictive

The Duramax OEM air filter housing is a bulky multi-piece design with harsh bends, corners and is designed for dust collection, not performance. The air path is compromised by resonators and silencers in an effort to keep noise at a minimum.

While the factory design does have inlets that mate to the hood's air scoop, its square filter and S-shaped flow path induces turbulence and drag to the intake system lowering Mass Air Flow.

The Devil's in the Details

The new Banks Ram-Air system features a durable heat-resistant Cross-Linked Polyethylene enclosure with a smooth organic shape that maximizes cool air volume around the filter and maintains air density into the box itself.

The top hood scoop duct now dumps directly into the airbox chamber, improving the ram-air effect at speed.

A side fender inlet away from engine heat further lowers the pressure drop in the system while also letting you hear your turbo better

Exclusive Bellows Free Performance

Standard factory style bellows induce drag to the intake. This added turbulence affects the boundary layer on the inside of the intake reducing the effective diameter for air to flow through.

Banks' huge tapering intake elbow with exclusive bellows slide over the Banks Super-Tube allowing for free engine movement and unobstructed airflow into the turbo.

The elbow is made from EPDM synthetic rubber instead of silicone for greater environmental resistance and strength against damage or collapse under vacuum.

Air Mass Matters

The greater the air mass entering your engine, the less fuel your engine will consume. That also means less engine heat going into the engine oil and coolant system since it is working less hard to make the same horsepower. In other words, improved fuel economy and less stress on the engine itself!

Yes, airflow (CFM) is important, but if the system flows more air, and that air is hot, you'll likely see a loss in horsepower and more stress on your engine.

Pressurized, cool, dense air is the winning combination. To learn more about air density, see this article.

A Big Filter — Engineered Right

The Banks Super-Tube fits perfectly over the top of the filter which has an integrated collar to smoothly transition airflow from the air box and into the turbo with the lowest resistance and drag.

The massive filter sits angled down in the air box to discourage dirt and debris from getting wedged between the pleats and Its massive51in2filter outlet Filter has overtwicethe airflow area of any competitor.

Bigger is Better When Properly Engineered

While other brands go for bragging rights for the "biggest" by cramming more pleats into their filters, they end up designing one that gets clogged faster and flows less air.

Just having a big looking filter, does not mean it will perform the best.

Banks massive filter has an optimized ratio of filter surface area, pleat count, and media thickness allowing it to outflow every other filter tested while breathing evenly from all sides. Banks wins again.

About This Product

The Ram-Air intake system for the 2024 Duramax 6.6L removes restrictions, sharpens turbo response, and improves fuel economy by increasing air mass flow. Banks patented Air Mass Control Module allows the system to improve performance without setting a check engine light like other brands. 50-state emissions compliant.
Fitment Note
Ram-Air Intake not compatible with 2025 Duramax. GM added a PCV sensor for the '25+ model year. The new Ram-Air Intake for the '25 includes both the patented Banks Air Mass Control Module and a new Banks Crankcase Ventalation Control Module. Avaliable Now
Specifications

Brand new for the 2024 Duramax 6.6L platform, the Banks Ram-Air intake is a game-changer. With the 2024 model year Duramax engines, GM further tightened the allowable range for induction tuning with its new MAF sensor calibration. To counter this, Banks engineers designed a new patented Air Mass Control Module allowing an intake design to go beyond these limitations for truly unmatched airflow performance.

With a Big-Ass filter, huge induction tube and a unique bellowed silicone coupler to allow for engine movement while tapering down to increase air density, your Duramax will breathe easy and cleanly. Its enclosed airbox design keeps power-robbing heat away and attaches to the OEM hood and front ram air scoops for even better performance at speed on the highway. An extra side inlet opens up to the wheel well for fresh air and a strong induction note sound.
U.S. Patent
US Patent #11,193,441
This Banks Ram-Air®
fits the following vehicles:
click to expand

Chevrolet

Chevrolet Silverado 2500

  • Chevrolet Silverado 2500 | 6.6L Diesel 2024

Chevrolet Silverado 3500

  • Chevrolet Silverado 3500 | 6.6L Diesel 2024

GMC

GMC Sierra 2500 HD

  • GMC Sierra 2500 HD | 6.6L Diesel 2024

GMC Sierra 3500 HD

  • GMC Sierra 3500 HD | 6.6L Diesel 2024
Installation and Support
Owners Manual and Install Video, Banks Ram-Air for 2024 6.6L Duramax L5P (Printer Friendly Version) Owners Manual, Banks Ram-Air for 2024 6.6L Duramax L5P

Banks Ram-Air®

Cold Air Intake w/ Massive Oiled/Dry Filter, Super Tube, and Air Mass Control Module

SKU #42285-D

2024 Chevy/GMC 2500/3500 6.6L Duramax, L5P
Does Not Fit 2025 - See Fitment Note

Removes restrictions, sharpens turbo response, and improves fuel economy. 58% mass air flow gain.

Limited Inventory Does not fit 2025 Does not fit 2025
$495.00
MSRP: $550.00

Choose Your Banks Ram-Air®

Your Selection: Dry Filter
Add-Ons
GOT QUESTIONS?
Talk with our experts
call 800-601-8072
50 state compliant
D-161-157
FAQs
INSTALL GUIDE
CALIFORNIA WARNING
Banks Ram-Air®
Add to cart

Sounds crazy but I'm seeing a gain of more than 3 mpg. Throttle response is much better. Impressed.

  Dallas B — Albuquerque, NM

Why You Need It

The Ram-Air intake system for the 2024 Duramax 6.6L helps the engine produce horsepower at lower RPM, sharpens turbo response, and improves fuel economy by improving air mass flow to the turbo. This is made possible by our patented electronics. Meanwhile, all competitors must retain near stock airflow or risk setting a check engine light.

Why It's Better

  • Only intake that improves mass air flow over stock
  • Improves turbo response
  • Improves fuel economy
  • Massive filter extends service life, fewer cleanings
  • Housing keeps out hot air
  • Housing increases air volume around filter
  • Connects to OEM hood scoop
  • Rubber elbow allow for engine movement
  • Increased turbo sound, no drone
  • Oiled or dry high efficiency filter
  • No check engine light
  • Includes Banks Air Mass Control Module
  • U.S. Patent 11,193,441

Helps engine produce horsepower at lower RPM

Thanks to a 45% reduction in pressure loss over the stock intake, air mass is increased into the turbo inlet. This denser air makes the turbo's job easier. Turbo lag is reduced and boost comes on sooner, widening the engine's working RPM range.
Wheel horsepower chart fort the Banks Ram-Air intake
Wheel Torque chart for the Banks Ram-Air intake
Wheel Horsepower
Wheel Torque

Not only does power come on sooner with the Ram-Air intake, but the turbo spins nearly 3,000 RPM slower increasing its efficiency and longevity. Turbo life is increased because it’s spinning millions of revolutions less over its lifetime.

Patented Electronics

The ECM (Engine Control Module) in your 2024 Duramax monitors air mass and pressure so closely that any deviation from stock results in a check engine light
Banks Air Mass Control Module used in the 2024 Duramax L5P

The new patented Banks Air Mass Control Module allows our engineers to design past this electronic limitation.

—U.S. Patent #11,193,441

Massive Airflow

In other words, all other competitive intakes must flow within a narrow airflow window near stock levels past the Mass Air Flow sensor, whereas these stock airflow design constraints do not limit us.
Cross sectionas MAF sensor for 2020+ L5P Ram Air Intake

Unrivaled Size and Capacity

The all-new Ram-Air cold air intake system's large organic shape eliminates all restrictions and turbulence to the turbo. The radical new design allows for a massive 58% gain in Mass Air Flow over the stock system.

The oversized filter has greater dust capacity giving you more miles between services and flows freely long after stock and competitors are clogged with debris.

The huge filter outlet smoothly tapers down providing the highest gains in air density.

Your Stock Intake is Restrictive

The Duramax OEM air filter housing is a bulky multi-piece design with harsh bends, corners and is designed for dust collection, not performance. The air path is compromised by resonators and silencers in an effort to keep noise at a minimum.

While the factory design does have inlets that mate to the hood's air scoop, its square filter and S-shaped flow path induces turbulence and drag to the intake system lowering Mass Air Flow.

The Devil's in the Details

The new Banks Ram-Air system features a durable heat-resistant Cross-Linked Polyethylene enclosure with a smooth organic shape that maximizes cool air volume around the filter and maintains air density into the box itself.

The top hood scoop duct now dumps directly into the airbox chamber, improving the ram-air effect at speed.

A side fender inlet away from engine heat further lowers the pressure drop in the system while also letting you hear your turbo better

Exclusive Bellows Free Performance

Standard factory style bellows induce drag to the intake. This added turbulence affects the boundary layer on the inside of the intake reducing the effective diameter for air to flow through.

Banks' huge tapering intake elbow with exclusive bellows slide over the Banks Super-Tube allowing for free engine movement and unobstructed airflow into the turbo.

The elbow is made from EPDM synthetic rubber instead of silicone for greater environmental resistance and strength against damage or collapse under vacuum.

Air Mass Matters

The greater the air mass entering your engine, the less fuel your engine will consume. That also means less engine heat going into the engine oil and coolant system since it is working less hard to make the same horsepower. In other words, improved fuel economy and less stress on the engine itself!

Yes, airflow (CFM) is important, but if the system flows more air, and that air is hot, you'll likely see a loss in horsepower and more stress on your engine.

Pressurized, cool, dense air is the winning combination. To learn more about air density, see this article.

A Big Filter — Engineered Right

The Banks Super-Tube fits perfectly over the top of the filter which has an integrated collar to smoothly transition airflow from the air box and into the turbo with the lowest resistance and drag.

The massive filter sits angled down in the air box to discourage dirt and debris from getting wedged between the pleats and Its massive51in2filter outlet Filter has overtwicethe airflow area of any competitor.

Bigger is Better When Properly Engineered

While other brands go for bragging rights for the "biggest" by cramming more pleats into their filters, they end up designing one that gets clogged faster and flows less air.

Just having a big looking filter, does not mean it will perform the best.

Banks massive filter has an optimized ratio of filter surface area, pleat count, and media thickness allowing it to outflow every other filter tested while breathing evenly from all sides. Banks wins again.

About This Product

The Ram-Air intake system for the 2024 Duramax 6.6L removes restrictions, sharpens turbo response, and improves fuel economy by increasing air mass flow. Banks patented Air Mass Control Module allows the system to improve performance without setting a check engine light like other brands. 50-state emissions compliant.
Fitment Note
Ram-Air Intake not compatible with 2025 Duramax. GM added a PCV sensor for the '25+ model year. The new Ram-Air Intake for the '25 includes both the patented Banks Air Mass Control Module and a new Banks Crankcase Ventalation Control Module. Avaliable Now
Specifications

Brand new for the 2024 Duramax 6.6L platform, the Banks Ram-Air intake is a game-changer. With the 2024 model year Duramax engines, GM further tightened the allowable range for induction tuning with its new MAF sensor calibration. To counter this, Banks engineers designed a new patented Air Mass Control Module allowing an intake design to go beyond these limitations for truly unmatched airflow performance.

With a Big-Ass filter, huge induction tube and a unique bellowed silicone coupler to allow for engine movement while tapering down to increase air density, your Duramax will breathe easy and cleanly. Its enclosed airbox design keeps power-robbing heat away and attaches to the OEM hood and front ram air scoops for even better performance at speed on the highway. An extra side inlet opens up to the wheel well for fresh air and a strong induction note sound.
U.S. Patent
US Patent #11,193,441
This Banks Ram-Air®
fits the following vehicles:
click to expand

Chevrolet

Chevrolet Silverado 2500

  • Chevrolet Silverado 2500 | 6.6L Diesel 2024

Chevrolet Silverado 3500

  • Chevrolet Silverado 3500 | 6.6L Diesel 2024

GMC

GMC Sierra 2500 HD

  • GMC Sierra 2500 HD | 6.6L Diesel 2024

GMC Sierra 3500 HD

  • GMC Sierra 3500 HD | 6.6L Diesel 2024
Installation and Support
Owners Manual and Install Video, Banks Ram-Air for 2024 6.6L Duramax L5P (Printer Friendly Version) Owners Manual, Banks Ram-Air for 2024 6.6L Duramax L5P

Overall rating: 4.951613 / 5 from 62 reviews.

AI Generated Review Summary

The Banks Ram-Air intake system enhances the 2024 Duramax 6.6L by improving air mass flow, turbo response, and fuel economy. Customers praise its easy installation, noticeable performance boost, and exceptional power difference. The system's sound and throttle response are also highly appreciated, with no check engine light issues.

Summary topics

  • Installation Ease: 19%
  • Performance Improvement: 8%
  • Power Difference: 19%
  • Engine Sound: 32%
  • Throttle Response: 14%

Review topics: ["fit","instructions","quality","install","sound","difference","improvement","issues","power","results","feel","shipping","performance","fitment","weight","truck","throttle response","banks","engine","lag","check engine light","system","tubes","air intake","guys","intake","upgrade","duramax","box","route"].

Review highlights

  • "Throttle response is amazing and the truck accelerates effortlessly." — Sue N.
  • "Easy install, truck seems to have better throttle response, and power comes on quicker." — Steven
  • "Once you get a couple minor things out the way, the install was so easy and the sound now is amazing!" — Brack M.

Reviews

2024 GMC AT4X pulling an 27 ft Airstream

"I recently pulled my naturally aspirated GMC to San Diego form at on AZ. I checked the gas mileage on the way there and while we were camping I took my truck up to Banks and had the Ram Air air flyer and hot and cold pipes installed. I drove home the exact same route and the exact same route hauling the Airstream and saw a significant improvement on my miles per gallon. It wasn’t huge but it was significantly better by 1-2 mpg. Over time that’s pretty good. And it just makes your engine compartment sexy!"

— Richard A. (5/5)

Huge difference 2024 3500 Duramax

"This is my second ram air system I’ve purchased from Banks for my Duramax engines. (2021&2024 6. 6L Duramax) I gave a 5 star review for both. Install was simple. Fitment was spot on. Engine sounds beautiful you’ll hear the difference and feel it as well. This ram air system along with the pedal monster completely took away the typical Chevy Duramax “dead pedal”. There is no lag anymore. And my engine can breath. You’ll understand what I mean after you install this system."

— Brian H. (5/5)

Worth the wait!

"I waited 3 months for this to be shipped to me. I might be one of the most impatient people on the planet. I would wait 6 months if I had to. I find it hard to believe a part that cost $500 could make such a drastic difference. But it totally changed the power and fuel economy in my 2024 GMC Duramax. Buy it now and understand it’s worth it!"

— Creighton S. (5/5)

Great product

"Product is great and works better than expected. I made my order Nov 25, 2025. No statement or communication of a back order or limited availability. Waited about 10 days before messaging to get an ETA for possible ship date. Was told it’d be the bench week. After the next week I massaged again, same story, ships next week, waited another week, then it was we’re so busy we’re hoping that orders will start to ship in a few weeks. Continued to wait patiently. Finally received a ship date in the third week of January and recieved the product January 21, 2026. They did get back to me when I’d message and ask within 24 hours, but I had to stay on them. Again, great product, better than anticipated. Timeline and communication leave a lot to be desired. I’ll hold off for a while before I follow through with the cooler pans and pedal monster I planned to order."

— Justin R. (5/5)

Ram Air installed on 2024 GMC Sierra 3500HD

"Excellent quality, great instructions for a smooth and easy install. Excited to have the product on my pickup!"

— Jason S. (5/5)

Banks ram on GMC 2500

"Sounds great have not had a chance to see power and gas mileage impacts. As for install fairly straightforward with the exception of the ram air tube to the air box. With the filter and the additional gasket it is to wide making the bolts it comes with very short. It was difficult to get the pieces close enough to attach. I was able to get 3of the 4 and then had to get new bolts that were slightly longer. Banks should look into this as I have read this from others. Not sure why the gasket was added as if it was just the filter this would not be an issue."

— Andre M. (5/5)

"Product is great and super easy installation. Only reason i am goving 4 stars is because of the three months it took for shipping. If they had let me know that, i might have not ordered or at least would have known. Wish they would have been more transparent about the shipping delay."

— Justin (4/5)

AS ADVERTISED

"Increased MPG from 14. 9 to 17. 0!"

— Robert T. (5/5)

Fitment and quality is top

"Fitment and quality is top notch. Paired it with the Banks turbo inlet and the pedal monster. Throttle response is awesome. Just be patience as the lead times are about 2 months"

— Joanie S. (5/5)

Banks Ram Air 2024 6. 6L Duramax

"Took 76 days from order date to delivery9/14/25 —> 11/28/25. Install of the box and air intake was easy and straightforward. Once the filter is in with foam gasket getting the bolts into the top of the air box was nearly impossible. It took two of us to pick up the bottom of the air box to get the back left bolt in and thru trial and error, get the rest of the three bolts in. Definitely a throatier sound and deeper growl with higher turbo spool sound. Install is not as easy as stated or shown on videos. Fuel economy is not improved but slight throttle response is noticeable."

— Kevin N. (4/5)

Q&A

Does it need to be tuned? Or will it not affect factory programming.
The Ram-air kit is designed to work with existing emissions hardware, you wont need a tune and it wont give any error code or CEL's when installed.
What kind of power difference and fuel economy are you expecting?
The Ram-Air intake allows you to enter the torque band earlier in the RPM range because it provides a denser air charge to the turbo, resulting in less work required to achieve the same boost. In short, the turbo is spinning about 3,000 rpm slower but making the same boost. Typically, fuel economy with our performance parts will vary based on driving habits, truck upgrades, and the environment. therefore we do not advertise gains. that being said, some testers and customers have seen a 1-2 mpg gain with the intake.
Will the ram air filter for the '24 require the deringer or any other add ons or can it be installed by itself
We recommend stacking the Ram-Air intake and the Derringer for the best driving experience and performance, but tuning is not required to run the intake.
Is there expected release date for the 2024-25?
While we do not have a formal release date for the Ram-Air Intake for the 2024/25 Duramax, we're confident that it will be the only cold air intake system that increases air mass, thanks to the patented Air Mass Control Module. In other words, it'll be worth the wait.
I see some vendors listing this as 2020-2024. Is there a difference? Same question for the tuner. Thank you.
The Ram Air and the Derringer for the 20-23 L5P Duramax will not carry over to the 2024+ trucks. The hardware and calibrations differ based on emissions changes for the 2024 model year and ECM tuning from the factory.