aFe Momentum GT Cold Air Intake

Chrysler 300 / Dodge Challenger / Charger 11-23 6.4L 392

Part #: 51-72203-R

Overview

The aFe Momentum GT Cold Air Intake is a precision-engineered performance upgrade designed specifically for the 2011–2015 Dodge Challenger and Charger equipped with the 6.4L 392 HEMI engine. This intake system enhances airflow and engine efficiency, delivering noticeable horsepower and torque gains while maintaining a clean, OE-style fitment. Ideal for enthusiasts seeking improved throttle response, increased power, and an aggressive under-hood appearance, the Momentum GT combines advanced engineering with practical design for a seamless upgrade.

Available in striking black or limited-edition red housing finishes, this intake system offers both style and substance. It supports easy installation without the need for cutting or special tools, making it a direct bolt-on solution that preserves factory mounting points and vehicle integrity.

Key Features

The Momentum GT Cold Air Intake system incorporates several innovative features that optimize performance and convenience:

• One-piece roto-molded housing with integrated air inlet for the coolest intake charge and reduced component count
• Large clear sight window for quick and easy air filter inspection without disassembly
• CAD-designed, dyno-tuned roto-molded intake tube for maximum airflow and power gains
• Injection-molded temperature sensor fitting ensures precise sensor alignment and engine communication
• Compatible with the Hellcat headlight air inlet on 2015–2019 Dodge Challenger models (requires optional scoop P/N: 54-72203-S)
• Stainless steel T-bolt clamps and reinforced silicone couplings for secure, leak-free connections
• Outflows factory intake by 18%, delivering measured airflow of 272 CFM at 1.5" H2O (Pro 5R filter configuration)
• Direct bolt-on installation with no cutting or drilling required

Filter Options

The Momentum GT intake offers two high-performance air filter options tailored to different driving needs:

• Pro DRY S Filter (Black or Red Housing): A 9-inch tall conical filter featuring three layers of progressively finer synthetic, oil-free media. This filter provides excellent filtration with long service intervals, ideal for street and light off-road use.
• Pro 5R Filter (Black Housing Only): A 9-inch tall inverted top filter constructed with five layers of oiled cotton gauze media. Designed for maximum airflow and power gains, it is perfect for aggressive driving and track applications.

Construction & Design

The Momentum GT intake system is built with durability and performance in mind. Its roto-molded housing is crafted from high-quality XLPE material, available in black or limited-edition red finishes, providing excellent heat resistance and structural integrity. The one-piece sealed housing design minimizes air leaks and protects the filter from engine heat, ensuring a cooler, denser air charge.

The intake tube is computer-aided designed and dyno-tested to optimize airflow dynamics, featuring a smooth internal surface and precise bends to reduce turbulence. The integrated temperature sensor fitting guarantees accurate readings and seamless engine management system integration.

Performance & Sound

Engineered to increase airflow by 18% over the factory intake, the Momentum GT Cold Air Intake delivers dyno-proven gains of up to +16 horsepower and +15 lb-ft of torque. These improvements translate into enhanced throttle response, quicker acceleration, and a more engaging driving experience. Additionally, the intake produces a deeper, more aggressive induction sound that complements the muscle car character of the Dodge Challenger and Charger.

Installation & Fitment

The Momentum GT system is designed for direct bolt-on installation using OEM mounting points, requiring no cutting, drilling, or special tools. The simplified one-piece housing and minimal components streamline the installation process, allowing enthusiasts to upgrade their intake system quickly and securely. This intake fits 2011–2015 Dodge Challenger and Charger models equipped with the 6.4L 392 HEMI engine.

What's Included

• One-piece roto-molded intake housing (black or limited-edition red)
• Roto-molded intake tube with integrated temperature sensor fitting
• Choice of Pro DRY S or Pro 5R air filter
• Stainless steel T-bolt clamps
• Reinforced silicone couplings
• All necessary mounting hardware and instructions

Ideal For

The aFe Momentum GT Cold Air Intake is perfect for Dodge Challenger and Charger owners who want to unlock additional power and torque from their 6.4L 392 HEMI engines without compromising reliability or factory aesthetics. It suits street enthusiasts, weekend racers, and anyone seeking a durable, high-flow intake system that enhances both performance and engine sound.

Ripp HEMI High Performance Coil Packs

05-25 5.7L, 6.1L, 6.2L, & 6.4L  HEMI Engines

MV8-CPK (8 Coilpacks)

Our coil pack is engineered from the ground up with higher quality materials, and increased amount of windings (turn ratio) in the primary and secondary winding. This provides a boost in millijoule power output, and this results in an increase in spark energy. With a stronger spark, cylinder flame speed is increased and thus adding up to an additional 20hp on the 5.7L and 25-30whp on the 6.4L. With this increased power output, you can expect a more responsive throttle input and a better driving experience overall. (For more technical information please see the tech notes below.)

Don't forget a fresh set of spark plugs. We recommend NGK Spark Plugs.

• Each order Includes all 8 coilpacks
• Direct bolt-on installation, plug and play
• Highest quality internal components and finish
• MOPAR Orange, Purple, Green or Steel Gray high temperature heat resistant outer housing 
• Heat resistant silicone boot
• Compatible with Naturally Aspirated and Forced Induction engines
• Improved Throttle Response
• Improved POWER
• Improved MPG
• No Tuning Required!!
• Heavy duty primary copper core winding.
• Higher quality Iron core with stronger laminations.
• Increased amount of secondary core windings.
• Precision Spool to promote Orthocycling winding and mitigate wild winding.  
• Sustained power delivery even at high RPM operation
• High Density Polymer Housing. 
• Heavy Duty, high-temperature, epoxy filled housing resists shock and vibration. Our dielectric compound completely penetrates coil windings assuring perfect insulation even upon exposure to high voltage conditions. Engineered to resist humidity, wear, vibration, impact and chemicals such as gasoline, oils and brake fluids. Will not degrade or crack even under severe thermal cycling.

*Not compatible with older generation 2003-2005 "gen III" engines.*   Please double check the year make and model of your vehicle and engine type. 

Fits the following vehicles:

• 2005 - Current: Dodge Charger/ Challenger V8
• 2005 - Current: Chrysler 300 V8
• 2007 - Current: RAM 1500 V8 (note: early 2007 vehicles might have have a gen III engine)
• 2007 - Current: Jeep Grand Cherokee V8 (note: early 2007 vehicles might have have a gen III engine) 5.7, SRT 
• 2007 - Current: Dodge Durango V8 (note: early 2007 vehicles might have have a gen III engine) 5.7, SRT
• 2021 - Current: Jeep Wrangler rubicon w/ 392 engine (V8)
• All Scat Pack, 392, SRT and Hellcat models.
• And many more V8 Hemi vehicles. 

TECH NOTES

RIPP Technical information about cylinder flame speed and how an upgraded ignition system will directly effect power. 

An Internal combustion engine's "flame speed" refers to the rate at which the air-fuel mixture burns during the combustion process. This speed significantly impacts engine performance and efficiency. The faster flame speed will increase cylinder pressure. When a spark is hotter, it ignites the air-fuel mixture more rapidly, leading to faster combustion, and an increase in pressure. Higher cylinder pressure = more torque pushing down on the piston.

Flame front propagation speed: As the flame front propagates faster across the combustion chamber, the fuel burns more efficiently, releasing more energy. This, in turn, enhances the engine's power and responsiveness. Additionally, with a faster flame speed, the combustion process is completed sooner, reducing the chance of incomplete burn or unburned hydrocarbons being released into the exhaust gases. In summary, optimizing the flame speed by utilizing more spark energy can significantly improve engine performance. It enables the engine to operate more efficiently, delivering increased power output, improved fuel economy.

Spark Energy is measured in Millijoules (mj). A Factory coilpack will generate 35.8mj. This mj value is considered low for the cylinder displacement value, piston surface area and air/fuel mixture. A RIPP coilpack will generate 53.6mj. This 17.8mj increase over stock will dramatically increase pressure per square inch across the piston surface. At first start up you'll immediately notice a smoother operating engine, and a "calmer" exhaust tone. This is due to less waste or unburnt hydrocarbons and fuel. Engine response and engine horse power will increase throughout the RPM range. 

E3 Spark Plugs

11-24 Chrysler 300 /  Dodge Challenger / Charger 6.4L 392

E3.74

The E3.74 Automotive Spark Plug is a high-performance replacement plug designed for vehicle. Engineered with E3’s patented DiamondFIRE technology, the plug promotes a faster, more complete combustion cycle—boosting horsepower, increasing fuel efficiency, and reducing emissions over the long term. This spark plug features a 14mm thread diameter, 1.000" reach, and taper seat to ensure a precise fit for your vehicle engine. Its triple-legged ground electrode secures the DiamondFIRE tip, enhancing heat dissipation and generating greater turbulence in the combustion chamber for maximum efficiency. The fixed-gap design eliminates the need for adjustments and delivers consistent spark performance across thousands of miles. Backed by a 5-year or 100,000-mile warranty, the E3.74 offers durability and peak engine performance for drivers who demand more from their vehicle.

• Patented DiamondFIRE Technology: Optimizes combustion for better throttle response, horsepower, and fuel economy
• Three-Leg Ground Electrode: Stabilizes the electrode for enhanced heat transfer and increased combustion turbulence
• Fixed DiamondFIRE Spark Gap: Factory-set for consistent ignition and long-term reliability—no gapping required
• Extended Service Life: Built to perform for 100,000 miles or 5 years under typical driving conditions
• Precision Fit: 14mm thread diameter, 1.000" reach, 5/8" hex, taper seat design
• Lower Emissions: Reduces unburned hydrocarbons for cleaner, more efficient engine performance