Service details and vehicle fitment
2019+ Ram HEMI Performance Tune Files
This is a custom remote tune built for 2019 & newer Ram HEMI trucks running popular camshaft setups including the BTR Truck Norris, Texas Speed Chopacabra, and similar performance HEMI cam profiles.
Designed specifically for the newer DT-platform Ram trucks, this calibration helps correct airflow, fueling, throttle response, transmission behavior, idle quality, and drivability after cam swaps, long tube headers, intake upgrades, and other performance modifications.
This is not a generic upload. Your tune is built around your factory read file, operating system, year, engine, transmission, tire size, gear ratio, and complete modification list.
Built for Modern Cammed Ram HEMI Trucks
The 2019+ Ram HEMI platform responds extremely well to camshaft upgrades, but proper tuning is critical for stable idle, clean drivability, throttle response, transmission operation, and reliable street manners.
- Built specifically for 2019 & newer Ram HEMI platforms
- Supports BTR Truck Norris, Texas Speed Chopacabra, and similar camshaft setups
- Corrects airflow, fueling, idle, spark, and throttle response
- Designed for aggressive sound with clean street drivability
- Built from your actual factory read file — not a generic canned tune
- HP Tuners required for reading and flashing
Vehicle Compatibility
- 2019 & Up Ram 1500 5.7 HEMI
- Ram 1500 Classic (2019+)
- Ram 2500 5.7 HEMI
- Ram 3500 5.7 HEMI
- DT-platform Ram trucks
- Automatic transmission HEMI applications
Supported Camshaft Setups
- BTR Truck Norris HEMI camshaft
- Texas Speed Chopacabra HEMI camshaft
- Texas Speed Stage camshaft setups
- Cammed HEMI street truck builds
- Long tube header combinations
- Mild to aggressive truck cam profiles
What This Tune Fixes
- Idle surge, unstable lope, and stalling
- Throttle hang and lazy RPM return
- Poor cold starts and hard startup behavior
- Bucking and low-speed drivability issues
- Incorrect fueling after camshaft installation
- Weak throttle response and dead pedal feel
- Torque management behavior for performance driving
- Transmission shift feel affected by added power
- Rear O2 sensor and catalyst codes when requested
Recommended Build Setup
- BTR Truck Norris or TSP Chopacabra camshaft
- Valve springs matched to cam lift requirements
- Long tube headers recommended
- Cold air intake or upgraded intake system
- Healthy fuel system and no exhaust leaks
- Properly installed camshaft and valvetrain components
- Good quality fuel recommended
Supported Tuning Platform
- HP Tuners MPVI2 / MPVI3 / MPVI4
- Windows laptop required
- Unlocked PCM may be required
- Customer must read and flash their own file
- HP Tuners credits required
- Battery charger strongly recommended during flashing
What We Need From You After Purchase
- Use your private Tune Portal to provide the original read, vehicle details and complete modification list.
- Include your order number
- Include year, make, model, engine, and transmission
- List camshaft, headers, intake, exhaust, injector, and converter setup
- Include tire size and gear ratio if changed
- Specify any special requests or code changes
- Normal Revision 1 turnaround is 24–72 business hours after we receive your stock read file, with delivery guaranteed no later than 72 business hours after receipt. The Revision 1 guarantee applies only to delivery of the initial file after JRJ receives your stock read. It does not guarantee a completion date for the entire tuning process or a deadline for later revisions. Contact JRJ through the Tune Portal if the promised initial delivery is missed; it will be reviewed as a service issue.
Important HP Tuners / PCM Notice
2019 & newer Ram HEMI vehicles require HP Tuners for this product. EFI Live is not supported for this HEMI application.
Some Ram applications may require an unlocked PCM before flashing. Please verify your setup before ordering.
Performance & Build Responsibility Notice
This is a performance calibration for modified Ram HEMI vehicles. All supporting components must be properly installed and mechanically sound before flashing.
Vacuum leaks, exhaust leaks, poor fuel quality, incorrect cam installation, or mechanical issues can cause drivability problems no tune can fully correct.
Flashing Safety Notice
Always flash with a stable battery voltage and wired connection. Do not interrupt the flashing process once started.
