When it comes to unlocking the full potential of your 6.7L Cummins engine, one of the smartest upgrades you can make is installing a cold air intake system. Whether you’re hauling heavy loads, towing across states, or just want to feel that extra torque when you hit the gas, this simple modification can make a real difference. But with so many options on the market, how do you know which one is truly the best cold air intake for 6.7 Cummins? This in-depth guide breaks it all down—without fluff, just pure diesel power knowledge.
Why Cold Air Intakes Matter for the 6.7 Cummins
Let’s be clear: the 6.7L Cummins diesel is a beast of an engine. Found in heavy-duty trucks like the Dodge Ram 2500 and 3500, it’s built for power, endurance, and performance. But even beasts can breathe better.
A factory air intake system is often designed with noise reduction and emissions compliance in mind, not performance. This limits airflow, raises intake air temperatures, and ultimately restricts your engine’s potential.
Installing a high-quality cold air intake (CAI) lets your engine pull in cooler, denser air. Why does this matter? Because cooler air contains more oxygen, and more oxygen means better combustion, increased horsepower, improved throttle response, and in many cases, better fuel efficiency.
Top Benefits of a Cold Air Intake for 6.7 Cummins
Here’s what you get with a proper CAI upgrade:
- More Horsepower: Improved airflow equals a stronger combustion cycle.
- Better Torque: Pulling power you can actually feel when towing.
- Improved Throttle Response: Say goodbye to turbo lag.
- Increased Fuel Economy: Especially when paired with smart tuning.
- Longer Engine Life: Cleaner, cooler air can reduce engine wear over time.
And when paired with a RaceME tuner—which we’ll dive into later—you’re not just boosting airflow, you’re optimizing the entire performance ecosystem of your Cummins diesel.
What to Look for in a Cold Air Intake
Not all CAI kits are created equal. When shopping for the best cold air intake for 6.7 Cummins, keep your eye on these must-have features:
- Material Quality: Aluminum or high-grade plastic withstands engine bay heat.
- Filter Type: Reusable cotton or dry synthetic filters are best.
- Sealed vs. Open Box: Sealed systems keep hot engine air out.
- Ease of Installation: Some kits are bolt-on and require zero tuning.
- CARB Compliance: If you’re in California, this matters.
EXPLORE: What is the Best Oil for 6.7 Cummins? Ultimate Guide
Top Picks: Best Cold Air Intakes for 6.7 Cummins
S&B Filters Cold Air Intake Kit
- Fit: 2013–2018 Ram 2500/3500 with 6.7L Cummins
- Gains: Up to +30.4% more airflow
- Features: Clear lid for easy filter inspection, highly efficient oiled or dry filters
S&B is often the top choice for performance enthusiasts. This system is designed for maximum airflow and durability, and it looks great under the hood.
AFE Power Momentum HD Intake System
- Fit: 2019–2024 Ram HD with 6.7 Cummins
- Gains: +27 HP and +73 lb-ft of torque (when paired with a tuner)
- Features: One-piece sealed housing, large clear window, premium Pro DRY S filter
AFE is known for quality and aggressive gains—especially when tuned properly.
Banks Ram-Air Intake System
- Fit: 2013–2022 Cummins models
- Gains: Noticeable airflow improvement and lower EGTs
- Features: Designed by Gale Banks Engineering for diesel performance
Banks focuses on reducing restrictions and lowering intake temps, making it a favorite among those who demand engineering precision.
The Power Combo: Cold Air Intake + Diesel Tuner
Here’s where the magic really happens. While a cold air intake on its own can add power, pairing it with a top-tier diesel tuner unlocks even more performance.
One of the most trusted tuners in the industry is RaceME. Known for its deep integration with 6.7 Cummins ECMs, a RaceME tuner can:
- Adjust fuel mapping for maximum efficiency
- Eliminate throttle delay
- Improve turbo boost response
- Increase HP and torque dramatically
Using a RaceME tuner together with your cold air intake ensures that the extra airflow is fully utilized. You’re not just letting the engine breathe better—you’re telling it how to perform better too.
Want a true performance upgrade? Check out RaceME Ultra Tuner, which is compatible with most 2007–2024 Ram 6.7 Cummins engines. On the 2022-24 Trucks a ECM swap back to a 2019-21 ECM is necessary.
Discover RaceMe Diesel Tuners!
Installation Tips for DIY Enthusiasts
Most CAI kits are designed to be plug-and-play with basic tools. Here are a few pro tips:
- Always disconnect your battery before installation
- Clean your MAF sensor if needed
- Don’t overtighten clamps—rubber couplers can deform
- Re-check fittings after 100–200 miles
If you’re installing both a CAI and a RaceME tuner, you made a very good choice because the products complement each other very well.
We recommend you to read one of our other important posts
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