The 6.7-liter Cummins is a very capable diesel engines on the road, but the factory airbox and restrictive intake tube leave easy power and turbo response on the table. A well-designed cold air intake feeds the turbo a larger, smoother volume of cooler air, which can sharpen throttle response, lower exhaust gas temperatures under load, and reduce that lugging feeling when you are towing heavy up a grade. The catch is that not every intake actually helps, and a bad filter choice can do real harm to a high-dollar engine.
We looked at the intakes that owners of 2007.5 to 2024 Ram 2500 and 3500 trucks actually run, weighing airflow gains against the thing that matters most on a diesel: filtration quality. Below are our seven favorite air intakes for the 6.7 Cummins, ranked best first, with honest pros, real weaknesses, and who each one suits.
| Photo | Product | Score | Buy |
|---|---|---|---|
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S&B Cold Air Intake Kit (75-5101D) for 6.7 Cummins Best Overall Sealed airbox, 8-layer oiled or dry cotton filter, 2007.5 to 2018 fitment |
9.5 | 🛒 Check Price |
 |
aFe Power Momentum HD Cold Air Intake for 6.7 Cummins Best Filtration One-piece sealed housing, Pro 10R oiled or Pro DRY S filter, 360-degree air entry |
9.3 | 🛒 Check Price |
 |
K&N 63 Series AirCharger Cold Air Intake for 6.7 Cummins Best Reusable Filter Heat shield design, washable cotton-gauze filter, million-mile limited warranty |
9.1 | 🛒 Check Price |
 |
Banks Power Ram-Air Cold Air Intake for 6.7 Cummins Best for Towing Enclosed housing, Banks designed for EGT reduction, dry or oiled filter options |
8.9 | 🛒 Check Price |
 |
AIRAID Cold Air Intake System for 6.7 Cummins Best Easy Install Enclosed airbox, SynthaMax dry or oiled filter, no-tune bolt-on |
8.7 | 🛒 Check Price |
 |
Spectre Performance Cold Air Intake for 6.7 Cummins Best Value Heat shield design, washable conical filter, simple bolt-on kit |
8.4 | 🛒 Check Price |
|
Mishimoto Performance Cold Air Intake for 6.7 Cummins Best Build Quality Sealed airbox, oiled or dry filter, durable roto-molded construction |
8.2 | 🛒 Check Price |
1. S&B Cold Air Intake Kit (75-5101D) for 6.7 Cummins: Best Overall
The S&B 75-5101 series is the intake we point most 6.7 Cummins owners toward because it nails the two jobs that matter: it moves a lot of air and it filters that air properly. The fully sealed roto-molded airbox draws from outside the engine bay and seals to the hood, so the turbo gets genuinely cooler, denser air instead of recirculated heat. S&B publishes independent airflow and efficiency numbers for both the oiled cotton and dry filter options, and on a diesel where a single missed particle can score a cylinder wall, that transparency is worth a lot.
The honest weakness is the oiled filter. If you over-oil it after cleaning, the excess can contaminate the mass airflow sensor and throw codes or soft-foul readings over time. The fix is simple, just choose the dry disposable filter or oil sparingly, but it is a real ownership consideration. Fitment is split by year, so confirm you are buying the 2007.5 to 2018 box and not the later generation. For most owners this is the complete, do-it-right intake.
- Fully enclosed roto-molded airbox that seals to the hood for true cold air
- Choice of oiled cotton or dry disposable filter, both with strong 99-plus percent efficiency
- Massive filter surface area sized specifically for diesel airflow demands
Pros: Excellent filtration that protects the turbo and MAF sensor; Sealed box keeps hot engine bay air out; Evaluated airflow and efficiency data published by the maker
Cons: Premium positioning means it is not the value pick; Oiled filter version requires correct re-oiling to avoid MAF issues
2. aFe Power Momentum HD Cold Air Intake for 6.7 Cummins: Best Filtration
The aFe Momentum HD is the intake we hand to anyone who drives a 6.7 Cummins in genuinely dirty conditions, think gravel roads, job sites, and dusty farm work. The sealed one-piece housing with its viewing window looks sharp, but the real story is the filter media. The Pro DRY S synthetic option holds an enormous amount of dust before it restricts flow, and because it uses no oil, it sidesteps the mass airflow sensor contamination that worries owners of oiled-cotton designs. The large-radius tube also cleans up the path into the turbo inlet for steadier spool.
The trade-off is size and weight. This is a bulky kit, and the install takes a bit more patience than a simple tube-and-filter swap, especially routing the housing around the battery and coolant lines. The clear lid, while useful for checking filter condition at a glance, can take on a slight yellow tint after years of underhood heat. None of that changes how well it protects the engine, which is exactly why it earns this spot.
- One-piece sealed Momentum housing with a clear viewing window
- Pro DRY S synthetic media option needs no oil and is reusable
- Large radius intake tube smooths airflow into the turbo inlet
Pros: Outstanding dust-holding capacity for off-road and farm use; Dry synthetic filter avoids MAF over-oiling risk entirely; Premium fit and finish with a sealed housing
Cons: One of the heavier and bulkier kits to install; Clear lid can yellow with heat over many years
3. K&N 63 Series AirCharger Cold Air Intake for 6.7 Cummins: Best Reusable Filter
K&N built its name on the washable cotton-gauze filter, and the 63 Series AirCharger brings that to the 6.7 Cummins with a roto-molded tube and a heat shield that blocks most of the hot air rising off the engine. The headline benefit is long-term value: clean it, re-oil it, and reinstall it, potentially for the life of the truck, all under K&N’s well-known limited warranty. Install is a straightforward bolt-on using factory points, which makes it one of the friendlier kits for a first-time DIYer.
Where it gives a little ground to our top picks is sealing. A heat shield is not the same as a fully enclosed box, so in stop-and-go traffic on a hot day, a bit more underhood air can reach the filter than with the S&B or aFe sealed designs. And as with any oiled cotton filter, you have to re-oil correctly after washing or you risk MAF sensor issues. Treat the maintenance seriously and this is a genuinely excellent, long-haul intake.
- Washable and reusable cotton-gauze filter backed by a long warranty
- Roto-molded tube with a heat shield to block engine bay air
- Bolt-on install using factory mounting points
Pros: Reusable filter that can outlast the truck if maintained; Trusted, widely available brand with broad support; Simple bolt-on install most owners can finish in an afternoon
Cons: Heat shield is less sealed than a full enclosed airbox; Oiled cotton media needs careful re-oiling after cleaning
4. Banks Power Ram-Air Cold Air Intake for 6.7 Cummins: Best for Towing
Banks has spent decades building diesel performance hardware, and the Ram-Air intake reflects that towing-first mindset. The enclosed housing keeps the filter away from radiant engine heat, and Banks backs the design with its own dyno and exhaust gas temperature testing, which is the metric that actually matters when you are pulling a heavy trailer up a long grade. Owners who tow regularly tend to report steadier power and a calmer turbo when the load piles on, which is exactly the use case this kit targets.
The honest caveats are about scope rather than quality. This is a premium kit that asks for a careful install, and the filter ecosystem around it is narrower than the cotton-gauze giants, so replacements and options take a little more searching. If your truck spends weekends light and unloaded, you may not feel the full benefit. But for a working 6.7 Cummins that earns its keep behind a trailer, Banks is a smart, purpose-built choice.
- Engineered with a focus on flow under sustained towing load
- Fully enclosed housing isolates the filter from engine heat
- Backed by Banks dyno and EGT testing data
Pros: Strong real-world reputation for cooler EGTs when towing; Enclosed design keeps intake air temperatures down; Quality components and a clean factory-style fit
Cons: Premium kit that sits at the higher end of effort and value; Fewer filter aftermarket options than the biggest brands
5. AIRAID Cold Air Intake System for 6.7 Cummins: Best Easy Install
AIRAID hits a sweet spot for owners who want a real enclosed intake without a complicated afternoon under the hood. The airbox encloses the filter and reuses the factory cold-air inlet, so you get cooler air than an open cone while keeping the install firmly in bolt-on territory. The SynthaMax dry filter is a highlight here: it washes clean with no oil, which sidesteps the mass airflow sensor contamination that scares people away from cotton-gauze, and it reinstalls in minutes. The instructions are clear enough that a first-timer can follow them.
The trade-off is at the top of the airflow curve. On a heavily modified, high-output 6.7 Cummins chasing every last bit of flow, the AIRAID will not quite match the largest sealed-box kits from S&B or aFe. The tube routing can also feel a touch tight around nearby accessories on certain model years. For a stock or mildly tuned truck where easy maintenance matters, though, this is among the most easy to use intakes you can buy.
- Enclosed airbox that reuses factory air inlet for cold air
- SynthaMax dry filter option that washes clean with no oil
- Designed as a true no-tune, bolt-on upgrade
Pros: Genuinely simple install with clear instructions; Dry SynthaMax filter avoids over-oiling worries; Enclosed box improves on the open-element designs
Cons: Airflow gains trail the very largest sealed kits; Tube routing can feel tight around accessories
6. Spectre Performance Cold Air Intake for 6.7 Cummins: Best Value
Spectre, which shares a parent company with K&N, is the pick for owners who want a reusable, washable filter and a real airflow bump without reaching for the flagship kits. You get a conical cotton filter, a heat shield to keep some of the hot air at bay, and simple bolt-on hardware that goes together quickly. For a daily-driven 6.7 Cummins that mostly hauls people and the occasional light load, it delivers a noticeable freshening of throttle response at a sensible level of investment.
The compromises are in sealing and finish. The heat shield does not enclose the filter the way a sealed box does, so intake air temperatures will run a bit warmer in traffic, and the overall fit and material quality feel a notch below the premium players. None of that makes it a bad intake, it is an honest, functional upgrade, but go in knowing it is built to a value target rather than to chase the absolute coolest, densest air.
- Washable and reusable conical cotton filter for long-term use
- Heat shield to separate the filter from engine bay air
- Straightforward bolt-on hardware and clamps
Pros: Strong value with a reusable filter included; Backed by the same parent company as K&N; Easy install for owners on a budget of time
Cons: Heat shield seals less than a fully enclosed airbox; Finish and components feel a step below the premium kits
7. Mishimoto Performance Cold Air Intake for 6.7 Cummins: Best Build Quality
Mishimoto has a deserved reputation for over-building its parts, and its 6.7 Cummins intake carries that through with a heavy-duty roto-molded sealed airbox and components that feel built to last. The sealed design keeps the filter isolated from engine heat for lower intake air temperatures, and you can choose between oiled cotton and dry filter media depending on your maintenance preference. Backing the whole kit with a lifetime warranty signals real confidence, and in practice owners rarely report durability complaints.
The reason it sits lower on our list is coverage and fiddliness rather than performance. Mishimoto’s fitment for the 6.7 Cummins is more limited across the full run of model years than the biggest brands, so you must confirm your exact year and configuration before buying. The install can also test your patience around tight underhood clearances. If your truck is covered and you value a bulletproof, lifetime-backed build above all else, though, this is a genuinely satisfying intake to own.
- Heavy-duty roto-molded airbox with a quality sealed design
- Choice of oiled cotton or dry filter media
- Backed by Mishimoto's strong lifetime warranty
Pros: Excellent build quality and durable components; Sealed airbox keeps intake temperatures low; Lifetime warranty support from a reputable brand
Cons: Limited fitment coverage across all 6.7 Cummins model years; Install can require patience around tight clearances
Frequently Asked Questions
Will a cold air intake add horsepower to my 6.7 Cummins?
On its own, an intake gives modest power gains, typically a small bump rather than a dramatic one, because the factory airbox is restrictive but not catastrophically so. Where you actually feel the difference is in throttle response, faster turbo spool, and lower exhaust gas temperatures when towing or climbing under load. The intake also unlocks more of the potential from other modifications like a tuner or exhaust, so it is best thought of as a supporting upgrade that improves how the truck breathes rather than a standalone power adder.
Do I need a tune after installing an air intake on a 6.7 Cummins?
No, the intakes on this list are designed as no-tune, bolt-on upgrades that work with your factory engine calibration. The 6.7 Cummins mass airflow sensor adapts to the increased airflow within normal limits, so you will not throw codes from the intake alone. A tuner can complement the intake and extract more from it, but it is not required. The one thing to watch is the mass airflow sensor itself: keep it clean and, if you run an oiled filter, avoid over-oiling so you do not contaminate the sensor.
Oiled cotton filter or dry filter for a diesel, which is better?
Both can filter very well, so it comes down to maintenance style and risk tolerance. Oiled cotton filters are washable and reusable and can flow beautifully, but if you over-oil them after cleaning, the excess oil can coat the mass airflow sensor and cause rough running or codes. Dry synthetic filters, like aFe Pro DRY S or AIRAID SynthaMax, wash clean with no oil at all, which removes that risk entirely and tends to hold more dust. For a dusty or off-road 6.7 Cummins, many owners prefer a high-efficiency dry filter for added security.
Is a cold air intake safe for my 6.7 Cummins engine?
Yes, provided you choose a quality intake with proven filtration efficiency. The risk with any intake is letting fine dust past the filter, which on a diesel can score cylinder walls over time, so filtration is the spec that matters most. Reputable brands like S&B and aFe publish independent efficiency numbers, often 99 percent or better, which is exactly what you want to see. Avoid no-name open-cone kits with no published efficiency data, and your engine will be just as protected as it was with the factory airbox, often better.
Does an air intake fit every year of the 6.7 Cummins from 2007.5 to 2024?
Not as a single part number. The 6.7 Cummins ran from the 2007.5 model year through current trucks, and the engine bay, sensors, and mounting changed across that span, so intakes are sold by year range. For example, the early 2007.5 to 2018 trucks use a different kit than the later trucks. Always confirm your exact model year and truck before ordering, and check the listing fitment notes. Buying the wrong generation is the single most common mistake owners make, so double-check before you click buy.
Our Verdict
For most 6.7 Cummins owners, the S&B Cold Air Intake is our top pick because it combines a fully sealed airbox with published, independently evaluated filtration that genuinely protects an expensive engine, all while feeding the turbo cooler, denser air. If you drive in dustier conditions or simply want to avoid oiled-filter maintenance entirely, the aFe Momentum HD is our runner up, offering outstanding dust capacity and a no-oil dry synthetic filter in a beautifully built sealed housing. Either one is a buy-once, do-it-right upgrade, so match the choice to your driving conditions and confirm your exact model year before ordering.
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