The Scat Pack runs the naturally aspirated 6.4L 392 HEMI, and that big V8 lives and dies on airflow. The factory airbox does a fine job keeping things quiet and clean, but it leaves real breathing on the table. A proper cold air intake opens up the top end, sharpens throttle response, and gives that 392 the deep induction growl it always deserved when you stand on it. The catch is that not every intake actually pulls cold air, and a poorly sealed unit can heat soak and cost you the very power you paid for.
We focused on intakes that genuinely fit the 6.4L Challenger and Charger Scat Pack, sealed against engine bay heat, and made measurable airflow gains without throwing a check engine light. Below are the seven we rank highest, ranked best first, with honest notes on fitment, filter type, and the one weakness each one carries.
| Photo | Product | Score | Buy |
|---|---|---|---|
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K&N 63 Series AirCharger Cold Air Intake (63-1564) Best Overall Sealed roto-molded tube, oiled cotton conical filter, 50-state legal CARB EO |
9.5 | 🛒 Check Price |
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AIRAID Cold Air Intake System (353-335) Best Sealed Box One-piece sealed airbox, SynthaMax dry filter option, molded intake tube |
9.3 | 🛒 Check Price |
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Mopar Cold Air Intake Kit (77070045) Best OEM Fit Genuine Mopar kit, conical filter, direct factory-engineered fitment |
9.1 | 🛒 Check Price |
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S&B Cold Air Intake (75-5106) Best Filtration Sealed housing with clear lid, large cotton filter, high dust efficiency |
8.9 | 🛒 Check Price |
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Spectre Performance Air Intake Kit (9069) Best Value Open conical washable filter, mandrel tube, heat shield included |
8.6 | 🛒 Check Price |
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aFe Power Magnum FORCE Stage-2 Intake (54-13029D) Most Aggressive Stage-2 sealed housing, large conical Pro DRY S filter, oversized tube |
8.4 | 🛒 Check Price |
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Injen EVOLUTION Cold Air Intake (EVO9100) Best Filter Tech Nanofiber dry filter, sealed rotomolded box, water-resistant media |
8.2 | 🛒 Check Price |
1. K&N 63 Series AirCharger Cold Air Intake (63-1564): Best Overall
The K&N 63 Series AirCharger is the intake we keep coming back to on the Scat Pack because it does the one thing many intakes fail at, which is actually sealing the filter away from engine heat. The roto-molded tube and enclosed heat shield mean the 392 pulls air from a genuinely cooler source, so the gains hold up on a hot summer cruise instead of evaporating into heat soak. Fitment on the 6.4L Challenger and Charger is precise, and the included hardware lines up without trimming or fighting the factory mounting points.
The honest weakness is the oiled cotton filter. It flows beautifully and lasts the life of the car, but if you over-oil it after a cleaning, the excess can contaminate the mass airflow sensor and trigger rough running. Discipline at cleaning time solves it completely, and for most owners that is a fair trade for the airflow and the deep induction note it unlocks.
- Fully enclosed heat shield isolates the filter from hot engine bay air
- Reusable oiled cotton gauze filter rated for around 100,000 miles between cleanings
- CARB exemption order makes it street legal in all 50 states
Pros: Genuine sealed cold air path, not an open cone; Dyno-backed power and airflow gains on the 392; Bolt-on fitment with no tuning required
Cons: Oiled filter needs careful re-oiling to avoid MAF fouling
2. AIRAID Cold Air Intake System (353-335): Best Sealed Box
AIRAID built the 353-335 around a fully enclosed airbox, and that design choice pays off on the 392. Where open cone intakes risk drinking warm air, this sealed box keeps the filter breathing from the cooler edge of the engine bay, so your power numbers stay consistent through traffic and back-to-back pulls. The molded tube routes air cleanly into the throttle body, and the whole assembly looks factory tidy once installed, which matters to owners who do not want a hacked-together look under the hood.
The honest trade-off is character. Because the box is sealed so well, the AIRAID is noticeably more reserved in its intake roar than the open units further down this list. If you want the loudest 392 howl on the street, this is not it. If you want consistent cold air, easy dry-filter maintenance, and a clean install, it is one of the smartest picks here.
- Fully enclosed one-piece airbox blocks underhood heat completely
- Available with washable SynthaMax dry media so no re-oiling is needed
- Smooth molded tube reduces turbulence into the throttle body
Pros: Excellent sealing keeps intake temps low; Dry filter option removes MAF oiling worry; Strong build quality and tidy fit
Cons: Slightly quieter induction note than open designs; Dry media flows a touch less than premium oiled cotton
3. Mopar Cold Air Intake Kit (77070045): Best OEM Fit
For owners who care about keeping things on the right side of the dealership, the genuine Mopar cold air intake is the safe and smart route. Because it is engineered by the same people who built the car, fitment on the Scat Pack is flawless, sensor locations stay correct, and there are no surprise check engine lights. Install is about as painless as a bolt-on gets, and it looks like it belongs under the hood because, in a sense, it does.
The honest limitation is that Mopar tuned this kit conservatively. You will gain throttle response and a better induction sound, but the peak airflow and dyno gains are more modest than the aftermarket heavyweights here. If you want maximum numbers you will look elsewhere, but if you value factory-grade fit and warranty confidence, this is the one to buy.
- Engineered by Mopar for exact Scat Pack fitment with no guesswork
- Maintains factory sensor placement so no codes or tuning hassles
- Backed by Mopar parts support and warranty-friendly design
Pros: Truly plug and play with perfect fit; Least likely to cause warranty friction at the dealer; Clean factory-grade appearance
Cons: Smaller airflow gain than aggressive aftermarket kits
4. S&B Cold Air Intake (75-5106): Best Filtration
S&B made its name on filtration, and the 75-5106 brings that strength to the 6.4L HEMI. The oversized filter and sealed housing combine high airflow with genuinely impressive dust efficiency, which matters if you drive dusty roads or just want to protect that big naturally aspirated V8 for the long haul. The clear lid is a small touch that owners love, because you can glance at filter condition without pulling anything apart.
The honest downside is bulk. This is a substantial intake, and in an already crowded Scat Pack engine bay the larger housing can make the install feel slightly more involved than a compact kit. Take your time with the routing and it seats cleanly, but it is not the fastest five minute swap on this list. The filtration and airflow payoff make it worth the patience.
- Oversized filter with very high evaluated dust efficiency for engine protection
- Clear top lid lets you inspect the filter without removing the box
- Sealed housing isolates intake air from engine heat
Pros: Outstanding filtration efficiency protects the 392; Big filter surface means long service intervals; Clear lid makes inspection easy
Cons: Larger footprint can feel tight in a busy bay; Premium build sits at the higher end of effort to install
5. Spectre Performance Air Intake Kit (9069): Best Value
The Spectre 9069 is the pick for owners who want a big jump in airflow and a loud, aggressive 392 induction snarl without overcomplicating things. The mandrel-bent tube and open conical filter move serious air, and the included heat shield does real work blocking radiant heat off the engine. It installs quickly, the filter washes and reuses, and on the street it sounds fantastic when you get into the throttle.
The honest weakness is the open design. Even with the heat shield, an exposed cone is more exposed to underhood heat than the fully sealed boxes higher on this list, so on a brutally hot day in slow traffic you can give a little back to heat soak. For spirited driving and great long-term value it is a strong choice, just go in knowing it trades some thermal isolation for that open-cone character.
- Washable conical cotton filter reuses for the life of the vehicle
- Mandrel-bent aluminum tube for smooth high-volume airflow
- Included heat shield helps block radiant engine bay heat
Pros: Strong airflow and loud induction note; Reusable filter keeps long-term value high; Simple bolt-on install
Cons: Open design is more heat sensitive than sealed boxes; Less filtration efficiency than premium units
6. aFe Power Magnum FORCE Stage-2 Intake (54-13029D): Most Aggressive
aFe built the Magnum FORCE Stage-2 for owners who want their Scat Pack to breathe hard and sound mean. The oversized roto-molded tube and large Pro DRY S filter focus on top-end airflow, and the sealed housing keeps the filter away from the worst of the engine heat. When you open it up, the 392 pulls cleanly and the induction note turns genuinely aggressive, which is exactly the point of this kit.
The honest caveat is that this is a lot of intake. The volume and the install effort are both on the higher side, so if you want something subtle and quick to fit, look at the Mopar or AIRAID instead. But if you are chasing the most aggressive breathing and sound short of forced induction, the Magnum FORCE delivers and the dry filter keeps maintenance simple.
- Sealed Stage-2 housing with oversized roto-molded intake tube
- Pro DRY S filter media needs no oil and washes clean
- Aggressive design tuned for top-end airflow on the 392
Pros: Big top-end airflow and a serious induction roar; Dry filter media is maintenance friendly; Sealed housing keeps heat out better than open cones
Cons: Loud enough to be too much for some daily drivers; Higher effort install than basic drop-in kits
7. Injen EVOLUTION Cold Air Intake (EVO9100): Best Filter Tech
Injen’s EVOLUTION line leans on its nanofiber dry filter, and that is the headline reason it earns a spot here. The hydrophobic media shrugs off water and traps fine particles while still flowing strong, and because it is dry there is no oil to migrate onto the mass airflow sensor. Paired with a sealed rotomolded box, the EVO9100 keeps the 392 breathing cool, clean air without the maintenance fuss of oiled filters.
The honest trade-off is that this is a premium, deliberate kit rather than a quick weekend slap-on. The fitment is good but the install rewards patience, and the induction character is more composed than the raucous open cones some Scat Pack owners crave. If you prioritize filter technology, water resistance, and a clean, refined breathing upgrade, the Injen is an excellent and slightly underrated choice.
- Hydrophobic nanofiber dry media resists water and fine dust
- Sealed rotomolded airbox isolates the filter from heat
- No oiling required so the MAF stays clean
Pros: Advanced nanofiber filter resists water ingestion; Sealed box keeps intake temps controlled; Truly maintenance-free dry media
Cons: Premium kit that asks for a careful install; Induction note is more refined than loud
Frequently Asked Questions
Will a cold air intake add real horsepower to my Scat Pack 392?
Yes, but set expectations correctly. On the naturally aspirated 6.4L 392 HEMI a quality sealed cold air intake typically frees up a modest but real horsepower gain, with the bigger everyday benefit being sharper throttle response and a stronger top end. The exact number depends on the kit, your other mods, and ambient conditions. A well-sealed intake that genuinely pulls cooler air will hold its gains, while an open cone that heat soaks in traffic can give some of that back. Pairing the intake with a tune usually unlocks more, but even alone you will feel the difference and hear that classic 392 induction growl.
Do I need a tune after installing a cold air intake on a Scat Pack?
For most of the 50-state-legal bolt-on intakes here, no tune is required and you will not throw a check engine light, because they are designed to keep the factory sensor placement and airflow within range. That said, a custom tune is where you extract the most from any intake on the 392. The car can adapt to the extra airflow on its own over a few drive cycles, but a tune optimizes fueling and timing to take full advantage of the cooler, denser air. If you plan to stack other mods, budget for a tune to tie everything together.
Oiled cotton filter or dry filter for my 392, which is better?
Both work well, and the right pick depends on your habits. Oiled cotton filters like the K&N flow extremely well and last the life of the car, but they require careful re-oiling at cleaning time, and over-oiling can foul the mass airflow sensor and cause rough running. Dry media filters, such as the SynthaMax, Pro DRY S, and Injen nanofiber units, skip oiling entirely, so there is no MAF contamination risk and maintenance is simply wash and dry. If you want maximum flow and do not mind careful upkeep, go oiled. If you want fewer worries, go dry.
Are these cold air intakes legal to drive on the street?
Many are, but you should verify before buying for your state. Intakes that carry a CARB Executive Order number, like the K&N AirCharger, are legal in all 50 states including California. Others are sold as off-road or 49-state-legal parts and may not pass emissions inspection in California or states that follow CARB rules. The genuine Mopar kit is the safest choice for keeping everything factory compliant and warranty friendly. Always confirm the specific part number’s emissions status for your area, since the same brand can offer both compliant and non-compliant versions.
How often should I clean the filter on a Scat Pack cold air intake?
It depends on the filter type and how dusty your driving is. Reusable cotton and dry filters generally go a long way between cleanings, often in the tens of thousands of miles under normal conditions, and premium units like the S&B with its large surface area and clear inspection lid make it easy to check. If you drive dusty roads, inspect more often. For oiled cotton filters, clean and re-oil per the maker’s instructions and resist the urge to over-oil. For dry filters, simply wash, let them fully dry, and reinstall. Checking the filter at each oil change is a good habit on the 392.
Our Verdict
For most Scat Pack owners the K&N 63 Series AirCharger is our top pick, because it nails the one thing that matters most on the 392, a genuinely sealed cold air path that holds its airflow gains even on a hot day, all while staying 50-state legal. If you would rather skip oiled-filter maintenance and want the most thoroughly sealed box, the AIRAID 353-335 is our runner up and an easy recommendation, especially with its dry SynthaMax filter option. Either one will wake up your 6.4L HEMI, sharpen throttle response, and give that big V8 the deep induction voice it has always wanted.
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