RAM 6.7L Cummins Custom Tunes

RAM 6.7L Cummins Custom HPtuners Tune

Improve the performance, drivability, throttle response, and transmission behavior of your RAM 6.7L Cummins with a custom calibration developed specifically for your truck.

Each tune is created using the original HPtuners read from your vehicle and is tailored around the truck’s model year, existing modifications, intended use, tire size, gearing, and requested power level.

Tuning Package

Engine Only
Includes one custom engine calibration for the selected power level and vehicle configuration.

Available Power Levels

Stock Power / Optimized
Maintains approximately stock power while improving supported throttle response, drivability, and calibration behavior.

Tow
Developed for towing and working applications with an emphasis on predictable power delivery and controlled transmission behavior.

Street
A balanced performance calibration intended for responsive everyday driving.

Final power output and available adjustments depend on the vehicle’s model year, condition, modifications, fuel system, turbocharger, transmission, and other supporting components.

Required Original File

An original, unmodified HPtuners read from your truck is required before the tune can be completed.

After placing your order, email the following to sales@4jtuning.com:

• Your order number
• Original HPtuners read file
• Vehicle year and model
• Current mileage
• Engine and transmission modifications
• Turbocharger and fuel-system modifications
  
• Intended use
• Requested power level
• Any current mechanical or drivability concerns

Incomplete or previously modified files may delay the order or require an additional stock file before tuning can begin.

Processing Time

Most orders are completed as quickly as possible. Please allow approximately one to two business days after all required files and vehicle information have been received.

Orders requiring additional information, unusual software versions, extensive modifications, or further diagnostic review may require additional processing time.

HPtuners Requirements

This listing includes the selected custom tune file only.

The customer is responsible for having:

• A compatible HPtuners interface or supported delivery device
• The correct version of VCM Suite
• Any required HPtuners credits
• Any required ECM or TCM licensing
• Any required module unlock, upgrade, or support service

HPtuners devices, credits, licensing, module services, and hardware are not included.

Important Information

The vehicle must be in proper mechanical condition before installing a modified calibration. Tuning will not repair mechanical problems, failing components, boost leaks, fuel-system problems, transmission damage, or existing electrical faults.

Custom calibrations are developed for the vehicle configuration provided at the time of purchase. Changes to the turbocharger, injectors, fuel system, transmission, gearing, tire size, or other major components may require a new or revised calibration.

The purchaser is responsible for verifying that the vehicle and its use comply with all applicable federal, state, and local laws. 4J Tuning does not provide calibrations intended to disable, bypass, or defeat legally required emissions-control systems on vehicles operated on public roads.

Installation and use are performed at the purchaser’s own risk. 4J Tuning is not responsible for damage caused by incorrect vehicle information, improper installation, interrupted programming, pre-existing mechanical problems, unsupported modifications, misuse, competition use, or operation beyond the capabilities of the vehicle and its components.