Custom Ram JB4 map 6 tunes
For Standard Output and High Output 3.0L Hurricane
Off-the-shelf maps are designed to operate safely across a wide range of configurations and conditions. Custom JB4 Map 6 tunes for the 3.0L Hurricane platform takes refinement further, reshaping torque delivery, improving low and mid-range grunt, increasing top end-power, and optimizing boost control for your specific truck and usage.
Through detailed data log analysis and structured real-world testing, we refine your JB4 for smoother throttle behavior, stronger usable top-end power, and consistent performance whether daily driving or looking for max performance.
At NXTGEN Automotive, our Hurricane engine calibration strategies are developed and validated in-house on our own vehicles. Every solution has been tested, refined and validated under real-world conditions before it reaches a client vehicle.
Engineered for smooth power delivery, and real-world reliability
Street to strip tunes
Single or dual octane packages available for purchase
Each package includes a purpose-built, data-driven calibration designed to extract the maximum performance from your truck in real-world conditions. Off-the-shelf (OTS) maps are a strong baseline, but they are built to work “well enough” across all vehicles. Our custom Map 6 calibrations are engineered specifically for your truck to deliver:
Smoother, more refined power delivery
Stronger, more consistent top-end pull
A customized boost curve for your specific truck, fuel, mods and usage
Consistent, repeatable performance
Why Custom JB4 Calibration Matters
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SO Draggy
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HO E85 Blend Power
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SO E85 Blend Power
Modern turbocharged engines like the 3.0L Hurricane are highly sophisticated torque-managed systems. Extracting safe and repeatable performance gains requires more than simply increasing boost pressure. Proper calibration must carefully shape boost delivery across the RPM range while working with the factory ECU’s torque modeling, fueling strategy, and protection systems.
Our custom JB4 Map 6 calibrations are developed through extensive real-world testing and datalog analysis. Rather than relying on generic preset maps, each calibration is engineered to improve acceleration, mid-range torque, and top-end power while maintaining smooth drivability and factory-level safety safeguards.
By optimizing boost control, airflow efficiency, and fuel delivery for 93 octane or ethanol blends, NXTGEN Automotive tuning unlocks the true potential of the Hurricane engine while preserving the reliability and refinement expected from a modern Ram truck.
The result is stronger, smoother, and more consistent performance across the entire powerband - whether daily driving, towing, or spirited acceleration.
Feedback From Our Clients
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⭐️⭐️⭐️⭐️⭐️
JB4 added power to my truck for sure, but it felt like stock, just more power. The NXTGEN remap 6 changed the whole feel.
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⭐️⭐️⭐️⭐️⭐️
This Hurricane engine is an upgrade in my opinion, but it lacks the grunt and character of the previous Hemi. With the E30 tune my Rebel is a BLAST now.
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⭐️⭐️⭐️⭐️⭐️
The towing tune was a nice addition I use often.
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⭐️⭐️⭐️⭐️⭐️
Wow! Not sure a truck this big should move this fast!!
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⭐️⭐️⭐️⭐️⭐️
The gas pedal was a little touchy stock and the JB4 originally compounded it. The custom calibration is a night and day difference from stock.
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⭐️⭐️⭐️⭐️⭐️
Excellent service and results. Each revision was incrementally better andI can’t recommend enough.
