DiabloSport Modified PCM

2011–2018 Ram 1500 5.7L Hemi 8-Speed

Part #: PCM-DR578S15

Overview

The DiabloSport Modified PCM (Unlocked) is a high-performance engine control module designed specifically for the 2011 to 2018 Ram 1500 equipped with the 5.7L Hemi V8 and 8-speed automatic transmission. This modified PCM unlocks the full tuning potential of your vehicle’s factory powertrain management system, allowing for custom calibrations and enhanced performance when paired with compatible DiabloSport programmers such as the Trinity or i3 (programmer sold separately).

Ideal for enthusiasts and professional tuners, this unlocked PCM provides a foundation for advanced tuning strategies, enabling improved throttle response, optimized fuel delivery, and the ability to safely increase horsepower and torque. It is a direct replacement for your factory PCM and is engineered to integrate seamlessly with your Ram 1500’s existing systems.

Key Features

The DiabloSport Modified PCM offers a range of features that empower you to maximize your Ram 1500’s performance potential:

• Unlocked calibration allowing custom tuning via DiabloSport programmers
• Compatible with 2011–2018 Ram 1500 models equipped with 5.7L Hemi and 8-speed transmission
• Direct OEM replacement ensuring plug-and-play installation
• Enables advanced tuning adjustments including fuel maps, ignition timing, and transmission shift points
• Supports performance enhancements without compromising drivability or reliability
• Allows for removal of factory speed limiters and other restrictions
• Designed to work seamlessly with DiabloSport’s tuning ecosystem
• Improves throttle response and overall engine efficiency when properly tuned

Construction & Design

The DiabloSport Modified PCM is built using high-quality components and advanced engineering to ensure durability and reliability under demanding conditions. The unit is carefully reprogrammed and tested to maintain OEM-level communication with your vehicle’s sensors and actuators while providing the flexibility needed for custom tuning. Its robust design ensures long-term stability and compatibility with your Ram 1500’s electrical and mechanical systems.

Installation & Fitment

Installation of the DiabloSport Modified PCM is straightforward and requires no permanent modifications to your vehicle. The PCM is a direct plug-and-play replacement for the factory unit and is typically located in the engine compartment on the right side of the firewall in the Ram 1500. Before ordering, you will need to provide your current PCM Calibration ID# to ensure proper matching and compatibility. It is recommended to consult your vehicle’s owner’s manual or a professional technician for precise PCM location and installation guidance.

What's Included

• DiabloSport Modified PCM (Unlocked) for Ram 1500 5.7L Hemi 8-Speed

Ideal For

This modified PCM is perfect for Ram 1500 owners who want to unlock the full tuning potential of their 5.7L Hemi engine. Whether you are a performance enthusiast looking to optimize power and drivability or a professional tuner seeking a reliable platform for custom calibrations, this PCM provides the foundation needed for advanced engine management and performance upgrades.

Emissions Note

This product is not available for sale or use on pollution-controlled vehicles and may not comply with emissions regulations in certain regions. Please verify local laws and regulations before purchasing or installing this modified PCM.

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.