The JLT Cold Air Intake CAI-75-5214 is a high-flow intake system engineered specifically for 6.4L 392 Gen 3 HEMI-powered Dodge Durango SRT and Jeep Grand Cherokee SRT models. Designed to replace the restrictive factory intake system, this kit gives the naturally aspirated HEMI a larger, smoother path for incoming air while helping shield the filter from underhood heat. S&B reports an average gain of 18-22 rear-wheel horsepower over stock, making this a worthwhile bolt-on upgrade for owners looking to improve performance without opening up the engine. A large cotton cleanable filter provides reusable filtration, while the roto-molded intake tube and heat shield are designed to promote airflow while maintaining an OEM-like appearance under the hood. Best of all, the system requires no custom tuning and is street legal in all 50 states under CARB Exempt ID D-590-38.

At the center of the system is a large roto-molded plastic intake tube designed to reduce restriction while avoiding the heat-soak characteristics associated with metal intake tubing. The tube features a 5-inch filter opening that transitions to a 4-inch opening at the throttle body. That larger throttle body connection also gives performance-minded 392 HEMI owners room to incorporate additional airflow upgrades as their build progresses.

JLT pairs the intake tube with a custom S&B Powerstack air filter. The filter uses a built-in bell mouth to create a smoother transition into the intake tube, while its deep pleats provide increased filtration surface area. The cotton cleanable design means the filter can be serviced and reused rather than routinely replaced, adding long-term value for a daily-driven or regularly used performance SUV.

Managing underhood temperature is also an important part of the design. A large roto-molded heat shield surrounds the filter and helps separate it from hot engine compartment air, particularly during idle and low-speed driving. The heat shield incorporates a fresh-air opening toward the grille and headlight area, utilizes the vehicle’s factory fresh-air inlet, and seals against the hood to help provide the filter with a consistent supply of outside air.

For Gen 3 HEMI owners, the combination of increased airflow and straightforward installation makes this intake a practical starting point for a naturally aspirated 392 build. It can be used on otherwise stock vehicles or incorporated alongside upgrades such as exhaust components, headers, throttle body upgrades, camshaft packages, and custom tuning. While S&B confirms that no tune is required for the intake itself, custom calibration can still be used as part of a larger performance combination.

Fitment includes the 2018-2020 Dodge Durango SRT 6.4L and 2012-2020 Jeep Grand Cherokee SRT 6.4L. Whether you’re looking for a simple bolt-on improvement for your daily-driven SRT or building a more aggressive naturally aspirated Gen 3 HEMI combination, the JLT Cold Air Intake delivers increased airflow, proven horsepower gains, reusable filtration, and a clean installation without requiring immediate tuning.

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Specifications & Features

• Manufacturer: JLT Performance / S&B
• Part Number: CAI-75-5214
• Product Type: Cold air intake system
• Engine Compatibility: 6.4L 392 Gen 3 HEMI
• Vehicle Compatibility: 2018-2020 Dodge Durango SRT 6.4L and 2012-2020 Jeep Grand Cherokee SRT 6.4L
• Year Compatibility: 2012-2020 Jeep Grand Cherokee SRT, 2018-2020 Dodge Durango SRT
• Published Performance Gain: 18-22 average RWHP over stock
• Filter Type: Cotton, cleanable
• Filter Design: S&B Powerstack with built-in bell mouth and deep pleats
• Filter Size: 5 x 7 inches
• Filter Color: Red oiled filter media
• Intake Tube Material: Roto-molded plastic
• Intake Tube Filter Opening: 5 inches
• Throttle Body Opening: 4 inches
• Heat Shield: Roto-molded heat shield with fresh-air feed
• Finish / Color: OEM-style black textured intake tube and heat shield
• Overall Size / Dimensions: Not specified by manufacturer
• Weight: Not specified by manufacturer
• Tuning Required: No
• Street Legal: Yes, street legal in all U.S. states according to S&B
• CARB Exempt ID: D-590-38
• Kit Includes: Roto-molded intake tube, silicone reducer, S&B Powerstack air filter, roto-molded heat shield, heavy-duty clamps, and required installation hardware
• Recommended Uses: Daily-driven SRT vehicles, naturally aspirated 392 builds, street performance, intake and exhaust combinations, camshaft builds, and other compatible Gen 3 HEMI performance applications
• Primary Benefits: Increased airflow, published 18-22 RWHP gains, reusable filtration, reduced intake restriction, fresh-air heat shield design, no tune requirement, and an OEM-style underhood appearance