Collection: 2020-2023 Duramax L5P

2020–2023 Duramax L5P parts and systems are built around GM’s Global B diesel architecture and updated powertrain control strategies.
These model years introduced changes to ECM and TCM communication, emissions integration, and transmission behavior that require components designed specifically for this generation of the L5P platform.

This collection groups products intended to maintain compatibility with factory systems while supporting service, maintenance, and modification needs for late-model GM diesel trucks.

Platform Overview

The 2020–2023 L5P platform operates within GM’s Global B electrical and control framework. This affects how tuning devices, exhaust components, and supporting hardware interface with the vehicle.

Key platform considerations include:

• ECM and TCM coordination under Global B
• Turbocharger control and boost management
• Emissions system integration
• Transmission shift logic and torque management

Components designed outside these parameters may introduce drivability or fault conditions.

Product Categories in This Collection

This collection includes products commonly required for the 2020–2023 L5P platform, such as:

• Tuning devices and calibration-related hardware
• Exhaust systems and exhaust components
• EGR-related service and upgrade components
• Supporting electrical, sensor, and control hardware

Products are organized based on vehicle compatibility rather than performance outcome.

System Compatibility Considerations

Late-model diesel platforms rely heavily on integrated control logic. Component selection should account for electrical interfaces, factory mounting locations, and software interaction between modules.

This collection is structured to assist users in identifying components that align with:

• OEM-style connectors and interfaces
• Platform-specific calibration requirements
• Factory driveline and exhaust layouts

Intended Use

This collection is intended for owners, technicians, and shops working with 2020–2023 Duramax L5P trucks who require accurate fitment and platform-aligned components.

Products listed here are grouped by compatibility and application, not by advertised performance gains.

Summary

The 2020–2023 Duramax L5P platform requires careful component selection due to its integrated control systems. This collection provides access to parts and systems intended to align with those requirements.

Explore the collection below.