DiabloSport Modified PCM

2019–2024 Ram 1500 5.7L Hemi 8-Speed, Non eTorque

Part #: PCM-DR578S20

Overview

The DiabloSport Modified PCM (Powertrain Control Module) is a high-performance upgrade designed specifically for the 2019 through 2024 Ram 1500 equipped with the 5.7L Hemi V8 engine and 8-speed transmission, excluding eTorque models. This unlocked PCM allows you to unleash the full potential of your truck’s engine management system by enabling compatibility with DiabloSport’s advanced tuning programmers such as the Trinity and i2 (programmers sold separately).

Ideal for enthusiasts and professional tuners alike, this modified PCM provides a foundation for custom tuning that can optimize power, torque, throttle response, and overall drivability. It replaces the factory PCM with a version that is unlocked and ready to accept performance calibrations tailored to your specific modifications and driving preferences.

Key Features

The DiabloSport Modified PCM offers a range of features that make it an essential upgrade for serious Ram 1500 owners looking to enhance their vehicle’s performance:

• Unlocked PCM for full tuning flexibility with DiabloSport programmers
• Compatible with 2019–2024 Ram 1500 5.7L Hemi V8, 8-speed automatic transmission, non eTorque models
• Supports custom calibrations to optimize horsepower, torque, and fuel efficiency
• Enables advanced tuning options including shift points, throttle mapping, and fuel delivery
• Plug-and-play replacement with no permanent modifications to the vehicle’s wiring
• Improves engine responsiveness and overall driving experience
• Designed for use with DiabloSport tuning devices (Trinity, i2) for easy programming
• Includes detailed instructions for locating and identifying your factory PCM calibration ID

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 firmware, this PCM is designed to withstand the demanding conditions of daily driving and high-performance applications. Its unlocked status is achieved through precise reprogramming, ensuring seamless integration with your Ram 1500’s existing systems without compromising safety or drivability.

Installation & Fitment

Installation of the DiabloSport Modified PCM is straightforward and requires no permanent vehicle modifications. The PCM is a direct replacement for the factory unit and is typically located in the engine compartment on the right side of the firewall in the Ram 1500. Prior to ordering, you will need to provide your current PCM Calibration ID to ensure compatibility. It is recommended to consult your vehicle’s owner’s manual or service guide for exact PCM location and removal instructions.

Once installed, the modified PCM must be programmed using a compatible DiabloSport tuner (sold separately) to load your desired performance calibration. This process is user-friendly and supported by DiabloSport’s software and customer support resources.

What's Included

• DiabloSport Modified PCM (Unlocked) for 2019–2024 Ram 1500 5.7L Hemi 8-Speed, Non eTorque
• Installation instructions and guidance on locating your factory PCM Calibration ID

Ideal For

This modified PCM is perfect for Ram 1500 owners who want to take full control of their truck’s performance tuning. Whether you are upgrading exhaust, intake, or other performance components, or simply want to optimize your vehicle’s power delivery and throttle response, this PCM provides the essential foundation for custom tuning. It is also ideal for professional tuners and performance shops specializing in Chrysler, Dodge, Jeep, and Ram vehicles.

Emissions Note

This product is not legal for sale or use on pollution-controlled vehicles and is intended for off-road or racing applications only. Please verify local regulations before installation and use.

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.