After researching manufacturer specifications, published industry standards, and aggregated owner feedback, we evaluated the top cold air intakes for the Ram 2500 diesel. Our comparison focuses on filtration efficiency, airflow gains, and real-world durability. We also highlight limitations and who should skip each product.
| Photo | Product | Score | Buy |
|---|---|---|---|
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S&B Filters 75-5085 Cold Air Intake Best Overall Dry filter, no oil; fits 2013-2018 Ram 2500 6.7L Cummins |
9.0 | 🛒 Check Price |
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Banks Power Ram-Air Cold Air Intake Best for Power Oiled cotton gauze filter; fits 2013-2018 Ram 2500 6.7L |
8.7 | 🛒 Check Price |
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aFe Power 54-10062 Magnum FORCE Stage-2 Best for Filtration Pro DRY S filter; fits 2013-2018 Ram 2500 6.7L |
8.4 | 🛒 Check Price |
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K&N 63-1534 AirCharger Kit Most Popular Oiled cotton filter; fits 2013-2018 Ram 2500 6.7L |
8.1 | 🛒 Check Price |
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Mishimoto MMCAI-6.7C-13BK Cold Air Intake Best Build Quality Black powder-coated aluminum tube; fits 2013-2018 Ram 2500 6.7L |
7.8 | 🛒 Check Price |
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Rough Country 70950 Cold Air Intake Best Value Dry filter; fits 2013-2018 Ram 2500 6.7L |
7.3 | 🛒 Check Price |
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Spectre Performance 9031 Cold Air Intake Budget Pick Universal-style kit; fits 2013-2018 Ram 2500 6.7L with modifications |
7.0 | 🛒 Check Price |
1. S&B Filters 75-5085 Cold Air Intake: Best Overall
In our evaluation, the S&B Filters 75-5085 stands out for its balance of performance and convenience. The dry filter design eliminates the risk of oil contaminating the MAF sensor, a common issue with oiled filters. Owner feedback highlights a noticeable improvement in throttle response and a modest increase in turbo whistle. The clear lid is a thoughtful touch for quick inspections.
However, the price is on the higher side, and some owners report that the heat shield could be more strong. If you frequently drive in dusty off-road conditions, the dry filter may require more frequent cleaning than an oiled alternative. This intake is best for daily drivers seeking a maintenance-friendly upgrade.
- Dry synthetic filter requires no oiling, reducing over-oiling risk
- Clear lid allows visual inspection without disassembly
- Includes heat shield and intake tube with OEM-style connections
Pros: Easy to install with basic hand tools; Filter life up to 100k miles between cleanings
Cons: Slightly higher price than some competitors
2. Banks Power Ram-Air Cold Air Intake: Best for Power
Banks Power is a well-known name in diesel performance, and their Ram-Air intake delivers on airflow. Based on owner feedback and published dyno results, this intake can add up to 15 horsepower on the 6.7L Cummins. The ram-air scoop is strategically placed to draw cooler air from behind the grille, a design we found effective in our research.
That said, the oiled filter requires careful maintenance to avoid MAF sensor issues. The price is also premium, and installation is slightly more involved due to the scoop. If you want maximum power and are willing to maintain the filter, this is a top choice. Skip it if you prefer a no-oil, set-and-forget solution.
- Large filter area for maximum airflow
- Ram-air scoop directs cooler air from grille area
- Includes reusable filter and pre-filter for dusty conditions
Pros: Proven power gains on dyno tests; Excellent filtration with optional pre-filter
Cons: Requires periodic oiling and cleaning
3. aFe Power 54-10062 Magnum FORCE Stage-2: Best for Filtration
aFe Power is known for high-quality filtration, and the Magnum FORCE Stage-2 lives up to that reputation. In our evaluation, the Pro DRY S filter offers excellent dust-holding capacity while maintaining strong airflow. Owner feedback consistently praises the build quality and the noticeable improvement in turbo response.
However, we found that a few owners with 2014 models reported a slightly loose fit on the intake tube, requiring a shim. Also, the price is mid-range but not the cheapest. If you drive in dusty or off-road conditions, this intake’s filtration makes it a smart choice. Avoid if you want a simple plug-and-play with zero modifications.
- 5-layer dry synthetic filter with 99.2% efficiency
- Large intake tube with smooth transitions
- Includes heat shield and all hardware
Pros: Superior filtration for dusty environments; No oil needed, low maintenance
Cons: Minor fitment issues reported on some model years
4. K&N 63-1534 AirCharger Kit: Most Popular
K&N is a household name, and the 63-1534 kit is a popular choice among Ram 2500 owners. Based on owner feedback, it provides a noticeable increase in induction noise and throttle response. The rotomolded tube is sturdy and resists heat soak better than some metal tubes.
However, we have concerns about the oiled filter. Many owners report MAF sensor contamination if the filter is over-oiled, which can cause drivability issues. The heat shield also leaves some gaps, allowing hot engine air to be drawn in. If you are meticulous about filter maintenance and want a proven brand, this is a decent option. Skip it if you prefer a dry filter or have had MAF issues before.
- High-flow oiled cotton filter
- Rotomolded intake tube for durability
- Includes heat shield and installation hardware
Pros: Widely available and well-known brand; Reusable filter with 1 million mile warranty
Cons: Oiled filter can over-oil and affect MAF sensor
5. Mishimoto MMCAI-6.7C-13BK Cold Air Intake: Best Build Quality
Mishimoto is known for premium construction, and this intake is no exception. The aluminum tube and billet heat shield are excellent, and the lifetime warranty provides confidence on the road. In our research, owners appreciate the fit and finish, but performance gains are modest compared to other options.
The price is one of the highest in this comparison, and the oiled filter still requires maintenance. Some owners also note that the intake tube can get hot under the hood, negating some cold air benefits. If you value aesthetics and build quality above raw power, this is a solid pick. Skip it if you are on a budget or want maximum airflow gains.
- Aluminum intake tube with heat-resistant coating
- High-flow cotton filter with pre-filter option
- Includes CNC-machined billet aluminum heat shield
Pros: Exceptional build quality and materials; Lifetime warranty
Cons: Expensive for the performance gains offered
6. Rough Country 70950 Cold Air Intake: Best Value
Rough Country is known for affordable off-road parts, and their cold air intake offers a budget entry point. Owner feedback indicates it fits well and provides a slight improvement in sound. The dry filter is a plus for low maintenance.
However, we found that the filter media is not as durable as competitors, and some owners report that the heat shield does not seal perfectly, allowing hot air ingress. The performance gains are minimal. If you are on a tight budget and want a basic intake, this works. Avoid if you want noticeable power gains or long-term durability.
- Budget-friendly dry filter system
- Simple installation with basic tools
- Includes heat shield and silicone couplers
Pros: Affordable price point; Dry filter requires no oiling
Cons: Filter material feels less solid than premium brands
7. Spectre Performance 9031 Cold Air Intake: Budget Pick
Spectre’s universal kit is the cheapest option, but it comes with compromises. Based on owner feedback, installation is not straightforward and often requires cutting the intake tube or sourcing extra couplers. The lack of a heat shield means it pulls hot engine air, reducing performance gains.
We also have safety concerns: without a proper heat shield, the risk of ingesting hot air is high, and the oiled filter can cause MAF issues. This intake is only suitable for experienced DIYers who want a project. Skip it if you want a reliable, bolt-on solution.
- Universal kit requires custom fitting
- Oiled cotton filter included
- Aluminum tube with polished finish
Pros: Very low price; Shiny appearance under hood
Cons: Not a direct fit, may need additional parts; No heat shield included
Frequently Asked Questions
Will a cold air intake void my Ram 2500 diesel warranty?
Generally, a cold air intake will not void the entire warranty, but it could affect coverage if the intake causes a specific failure. Under the Magnuson-Moss Warranty Act, the dealer must prove the aftermarket part caused the damage. Many owners have no issues, but we recommend checking with your dealer and keeping the stock parts just in case.
Do I need a tuner with a cold air intake on a Ram 2500 diesel?
A tuner is not required, but it can optimize the air-fuel ratio to take full advantage of increased airflow. Without a tune, you may still see modest gains in throttle response and sound. For maximum power, pairing with a tuner is recommended, but it is not essential for daily driving.
How often do I need to clean the filter on a cold air intake?
It depends on the filter type and driving conditions. Oiled cotton filters typically need cleaning every 30,000 to 50,000 miles, or more often in dusty environments. Dry synthetic filters can go up to 100,000 miles before cleaning. Always follow the manufacturer’s guidelines.
Will a cold air intake improve fuel economy on my Ram 2500 diesel?
Some owners report a slight improvement in fuel economy, usually 1-2 mpg, due to reduced restriction. However, results vary widely and depend on driving habits. Most gains are realized when the intake is combined with a tune and other modifications.
Can I install a cold air intake myself on a Ram 2500 diesel?
Yes, most cold air intakes are designed for DIY installation with basic hand tools. The process typically takes 30-60 minutes. We recommend watching installation videos specific to your model year, as some require removing the airbox and battery tray. If you are not mechanically inclined, professional installation is a good option.
Our Verdict
After researching and comparing, our top pick is the S&B Filters 75-5085 for its excellent balance of performance, ease of use, and maintenance-free dry filter. For those seeking maximum power, the Banks Power Ram-Air is a strong runner-up with proven dyno gains. Choose based on your priorities: low maintenance vs. peak horsepower.
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