Description
DiabloSport Modified PCM
2011–2018 Ram 2500, 2011–2018 Ram 3500 6.4L Hemi 6-Speed
Part #: PCM-DR646S16
The DiabloSport Modified PCM (Unlocked) is a high-performance engine control module designed specifically for 2011 to 2018 Ram 2500 and 3500 trucks equipped with the 6.4L Hemi engine and 6-speed transmission. This modified PCM unlocks the full tuning potential of your vehicle’s powertrain, allowing you to optimize engine performance, fuel efficiency, and drivability. Ideal for enthusiasts and professional tuners alike, it serves as the foundation for custom tuning with DiabloSport programmers such as the Trinity and i3 (programmers sold separately).
By replacing your factory PCM with this unlocked version, you gain the flexibility to upload custom calibrations tailored to your specific modifications and driving preferences. This product is perfect for those looking to maximize the capabilities of their Ram’s 6.4L Hemi engine without the limitations imposed by the stock PCM.
Key Features
The DiabloSport Modified PCM offers a range of features that enhance your vehicle’s tuning capabilities and overall performance:
- Unlocked PCM calibration for full custom tuning access
- Compatible with DiabloSport programmers including Trinity and i3
- Designed specifically for 2011–2018 Ram 2500 and 3500 with 6.4L Hemi and 6-speed transmission
- Enables advanced tuning options such as fuel mapping, ignition timing, and transmission shift points
- Supports performance upgrades without factory programming restrictions
- Improves throttle response and engine efficiency when properly tuned
- Direct replacement for factory PCM with plug-and-play installation
- Includes calibration ID reference to ensure correct fitment and programming
Construction & Design
The DiabloSport Modified PCM is engineered to meet or exceed OEM standards for durability and reliability. Built with high-quality electronic components and robust housing, it withstands the demanding conditions of engine bay environments. The unit is carefully reprogrammed and tested to ensure seamless integration with your vehicle’s existing wiring and sensors, maintaining factory-level communication and diagnostics while enabling enhanced tuning capabilities.
Installation & Fitment
Installation of the DiabloSport Modified PCM is straightforward and designed to be a direct swap with your factory PCM. The PCM is typically 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. Before ordering, you will need your current PCM’s Calibration ID# to ensure compatibility. No permanent modifications to your vehicle’s wiring or hardware are required, making this an accessible upgrade for both professional installers and experienced enthusiasts.
What’s Included
- DiabloSport Modified PCM (Unlocked) unit
- Calibration ID reference guide
Ideal For
This modified PCM is ideal for Ram 2500 and 3500 owners who want to unlock the full tuning potential of their 6.4L Hemi engine. It is perfect for enthusiasts seeking custom performance calibrations, professional tuners developing specialized tunes, and anyone upgrading their vehicle with aftermarket performance parts that require advanced engine management flexibility.
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 local emissions regulations.






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