2020-2023 L5P Duramax MPVI4 Tunes ONLY

Product Info

2020-2023 L5P Duramax MPVI4 Tunes ONLY is organized to make fitment, included components, and ordering details easier to confirm.

Confirm the listed year, make, model, engine, and any truck-specific configuration before purchasing. Review the available Tuning Options selections before ordering. The exact contents and fitment depend on the options selected on this product page.

How to Choose Your Options

• Tune quantity: Single Tune supplies one calibration for the selected setup. SOTF/Multi-Tune + Switch provides multiple tune positions and the listed switch so supported calibrations can be changed without reflashing the truck.

Complete L5P/L5D Delete Tune Package ONLY.

NO UNLOCK CABLE NEEDED ANYMORE.

Get Everything You Need for a Comprehensive Performance Tuning Upgrade

Unlock the full potential of your L5P or L5D Duramax with our complete tune package, designed to provide all the essentials for a seamless tuning experience.

Important Note:

• Computer Requirement: A Windows 10 or newer computer is required for the tuning process.
• Installation Instructions: Upon placing your order, you will receive detailed instructions and all necessary information via email, including helpful PDF guides. Our full tech support team is available to assist you with the tuning process if needed.

Installation and Tuning Tips:

1. Do Not Uninstall Parts Before Receiving All Components: Ensure you have received all exhaust parts and tunes before uninstalling any parts from your truck.
2. Tune Before Installing Exhaust or EGR Delete Kit: Always tune your truck prior to installing exhaust parts or the EGR delete kit to avoid complications.

Warranty and Return Notes:

• No Returns/Refunds: Due to the VIN-specific nature of the HP tuner and ECM custom tuning, returns and refunds are not available.
• Lifetime Warranty: All pipes, exhaust systems, EGR kits, and non-electronic parts come with a standard lifetime non-prorated warranty.
• One-Year Warranty: Tuners, tuning software, and electronic parts are covered by a one-year manufacturer warranty.

Cab Chassis Truck Compatibility: For Cab Chassis trucks, we recommend selecting the 4-inch exhaust with a downpipe for correct fitment without the need for modifications.

Quick ECM Unlock with the All-New ECM Unlock Tool Unlock your factory E41 ECM in just 20 minutes or less with the all-new ECM unlock tool. This tool is compatible with 2020-2023 Chevy Silverado and GMC Sierra 2500/3500/4500/5500 6.6L Duramax trucks (L5P and L5D applications) and allows for read, write, and special functions without removing the factory ECM from your truck.

Vehicle Compatibility:

• 2020 - 2023 Chevy/GMC 2500/3500/4500/5500 L5P Duramax Cab Chassis Trucks
• Exhaust modifications may be required for these models.

Includes:

• Full custom tune pkg included.
• Build your own kit.
• This listing is for tunes only & any other parts you need.

Tuning Options:

• No Transmission Tuning Included by Default: Transmission tuning is available as an option. If selected, you will need to send your TCM stock file for custom tuning. We’ll guide you through the process to ensure everything goes smoothly.

EGR Delete Kit: Remove harmful gasses and soot that cause build-up and performance loss. Our EGR delete kits reduce turbo lag, lower engine temperatures, decrease weight, and clean up your engine bay, ensuring a longer-lasting, better-running truck.

DPF/DEF Exhaust Systems: Choose between a DPF race pipe or a full 4 or 5-inch exhaust system that entirely replaces your old exhaust and removes DPF emissions components. This exhaust is designed to work seamlessly with our custom tuning.

About the Exhaust Systems: We offer exhaust systems from top brands like Flo~Pro and Jamo, ensuring you receive high-quality components tailored to your vehicle. These systems are constructed for durability and performance, with features like lap-joint style clamps to maintain pipe integrity and stainless steel components for longevity.

Tune Levels:

1. Heavy Tow Tune: Ideal for towing up to GVWR, provides +0 RWHP, +100 ft-lbs torque, with a focus on durability and efficiency.
2. Light Tow Tune: Perfect for towing loads up to 8,000 lbs, adds +50 RWHP, +200 ft-lbs torque, balancing sportiness with functionality.
3. Sport Economy Tune: A fun daily driving tune, adds +80 RWHP, +300 ft-lbs torque, near 550 RWHP.
4. Hot Street Tune: More aggressive than Sport Economy, adds +120 RWHP, +400 ft-lbs torque, approaching 580 RWHP.
5. Race/Max Effort Tune: Maximizes factory turbo, adds +180 RWHP, +500 ft-lbs torque, reaching up to 620 RWHP with additional components.

Upgrade Your Duramax at Home: Perform these upgrades in the comfort of your garage or shop, with the confidence of having all the necessary tools, components, and support at your disposal. Transform your vehicle into a high-performing machine tailored to your specific needs.