20-23 L5P Duramax MPVI3 Tunes ONLY

Complete L5P/L5D Delete Tune Package ONLY.

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 Policy:

• 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.

Shipping and Returns Policy

Important Notice: Please Read Carefully

Shipping Costs
Our shipping rates apply to orders shipped within the United States and Canada.

Shipping Times

• Air Shipping: Orders placed with air shipping by 2:00 PM EST on a business day will ship the same day.
• Ground Shipping: Our goal is to process and ship within 24-48 hours during business days, unless your order contains custom tunes that are preloaded which may take an additional 1-3 business days to ship.

Shipping Delays
Please be aware that we are not responsible for shipping delays due to weather conditions, natural disasters, or any other events beyond our control. No refunds will be issued for delays caused by such events.

Special Shipping Information

• Alaska and Hawaii:
  Orders shipping to Alaska and Hawaii must select 2nd Day Air. Overnight shipping may not be available for remote areas, and these locations may experience longer delivery times than stated.
• Remote Areas:
  Some remote areas in Canada and other regions may incur additional shipping costs. If additional fees apply, we will notify you, and your order will be shipped once the extra shipping cost is paid.
• International Shipping:
  For shipping outside the US and Canada, please contact us through our contact page for assistance.
• Large Packages:
  All Full Exhausts, Pipes, and Air Intakes ship GROUND!

Returns Policy

1. General Return Policy:
   Due to the specialized nature of our products, we generally do not accept returns. Most items are VIN-specific or custom-built to order.
2. Defective Items:
   We only accept exchanges for defective items. We recommend professional installation for these items. If a product is defective and cannot be exchanged or repaired, a refund of the original purchase price will be issued upon receipt of proof of malfunction or damage.
3. Return Exceptions:
   In certain cases, we may make exceptions for returns. If your return request is approved, a 30% restocking fee will be applied. All items must be returned in their original packaging, and return shipping costs will not be refunded.
4. Cancellations:
   All sales are final. If you cancel your order after it has been placed but before it has shipped, a 5% processing fee will apply.
5. Non-Returnable Items:
   Certain items, such as hard parts (e.g., EGR kits, DPF pipes/exhaust, pyro kits, throttle valve kits, exhaust tips, and intakes), are not eligible for return unless an exception is made. If an exception is granted, a 30% restocking fee will be applied, along with the cost of return shipping.

Contact Us
Before returning any items, please contact us for specific shipping instructions.

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