DiabloSport Modified PCM

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

Part #: PCM-DR578S21

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 automatic 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. By replacing your factory PCM with this unlocked version, you gain the flexibility to tailor your Ram 1500’s performance to your specific needs and preferences.

Key Features

The DiabloSport Modified PCM offers a range of features that make it a valuable upgrade for Ram 1500 owners seeking enhanced performance and tuning capability:

• Unlocked PCM calibration for full tuning flexibility
• Compatible with DiabloSport Trinity and i2 programmers (sold separately)
• Designed specifically for 2019–2024 Ram 1500 5.7L Hemi with 8-speed transmission (non eTorque)
• Enables custom tuning for improved horsepower, torque, and throttle response
• Direct replacement for factory PCM with plug-and-play installation
• Supports advanced tuning strategies including fuel, ignition, and transmission adjustments
• Allows for performance optimization without permanent modifications to factory hardware
• Ideal for use with aftermarket exhaust, intake, and other performance upgrades

Construction & Design

The DiabloSport Modified PCM is engineered to meet or exceed OEM quality standards, ensuring reliable operation under demanding conditions. Built with robust internal components and precision programming, this PCM maintains the durability and longevity expected from factory modules while providing the flexibility needed for custom tuning. Its design ensures seamless integration with your Ram 1500’s existing wiring harness and sensors, minimizing installation complexity and maintaining factory-like reliability.

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, 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’s Calibration ID to ensure compatibility. After installation, the PCM can be programmed using a compatible DiabloSport tuner to customize your vehicle’s performance parameters.

What's Included

• DiabloSport Modified PCM (Unlocked) for 2019–2024 Ram 1500 5.7L Hemi 8-Speed, Non eTorque

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 throttle response or a professional tuner seeking a reliable base for custom calibrations, this PCM provides the flexibility and compatibility needed to achieve your goals. It is especially beneficial for vehicles equipped with aftermarket performance parts such as cold air intakes, exhaust systems, and superchargers.

Emissions Note

This product is not available for sale or use on pollution-controlled vehicles. It is intended for off-road or racing applications only and may not comply with emissions regulations in certain regions. Please verify local laws before installation and use.