DiabloSport Modified PCM

2011–2018 Ram 2500, 2011–2018 Ram 3500 6.4L Hemi 6-Speed

Part #: PCM-DR646S15

Overview

The DiabloSport Modified PCM (Unlocked) is a high-performance engine control module designed specifically for 2011 to 2018 Ram 2500 and Ram 3500 trucks equipped with the 6.4L Hemi V8 and 6-speed transmission. This modified PCM unlocks the full potential of your vehicle’s powertrain by allowing compatibility with DiabloSport’s advanced tuning devices, such as the Trinity and i3 programmers (sold separately). Ideal for enthusiasts and professional tuners, this PCM provides a foundation for custom calibrations that optimize horsepower, torque, and drivability.

By replacing your factory PCM with this unlocked version, you gain the flexibility to tailor your engine’s performance parameters to your specific needs, whether for towing, hauling, or spirited driving. The DiabloSport Modified PCM is engineered to integrate seamlessly with your Ram’s existing systems, ensuring reliable operation while maximizing performance gains.

Key Features

This modified PCM offers a range of features that make it an essential upgrade for serious Ram owners looking to enhance their vehicle’s capabilities:

• Unlocked calibration allowing custom tuning with DiabloSport programmers
• Compatible with 2011–2018 Ram 2500 and 3500 models equipped with 6.4L Hemi and 6-speed transmission
• Enables advanced performance tuning for increased horsepower and torque
• Supports a wide range of tuning options including fuel, ignition, and transmission parameters
• Maintains factory-level reliability and integration with vehicle systems
• Facilitates improved throttle response and optimized fuel economy when properly tuned
• Allows for custom calibrations tailored to specific driving conditions and modifications
• Designed to work exclusively with DiabloSport’s tuning devices (programmer sold separately)

Construction & Design

The DiabloSport Modified PCM is built to meet or exceed OEM standards, ensuring durability and long-term reliability under demanding conditions. The unit is carefully reprogrammed and tested to provide a stable platform for custom tuning without compromising the vehicle’s electronic control systems. Its robust design withstands the harsh environments typical of heavy-duty trucks, including temperature extremes and vibration.

Each PCM is modified with precision to unlock the calibration while preserving the original hardware integrity. This ensures that the module remains fully compatible with your Ram’s engine management system and other onboard electronics.

Installation & Fitment

Installation of the DiabloSport Modified PCM is a straightforward process that typically involves swapping out the factory PCM with the modified unit. It is important to have your current PCM Calibration ID# available when ordering to ensure proper matching and compatibility. The PCM is commonly located in the engine compartment, under the passenger floorboard, beneath the seats, or behind kick panels—consult your vehicle’s owner’s manual for exact location.

Once installed, the modified PCM requires a DiabloSport programmer (sold separately) to upload custom tunes and calibrations. Professional installation and tuning are recommended to maximize performance benefits and maintain vehicle reliability.

What's Included

• DiabloSport Modified PCM (Unlocked) for 2011–2018 Ram 2500/3500 6.4L Hemi 6-Speed

Ideal For

This product is ideal for Ram 2500 and 3500 owners who want to unlock the full tuning potential of their 6.4L Hemi trucks. Whether you are a performance enthusiast, a professional tuner, or someone looking to optimize towing and hauling capabilities, this modified PCM provides the essential foundation for advanced engine management customization.

Emissions Note

Not available for sale or use on pollution-controlled vehicles. This product is intended for off-road or racing applications only and may not comply with emissions regulations in certain regions.

DiabloSport makes handheld tuners and ECU tuning solutions aimed at unlocking additional performance and improving drivability for many late-model domestic trucks and muscle cars. Their devices and supported tuning ecosystem are commonly used to optimize engine and transmission calibrations after mods like intakes, exhaust, or gearing changes.