L5P + L5D CAB CHASSIS TRUCKS ONLY Duramax | Custom Tuner + GDP Tunes | EGR DPF DEF Complete Delete Kit
Kit Add-ons
Click "add to kit" to add an item to your kit. The more you add the more you save! Included items can be removed from your kit by clicking the red button "remove from kit". You can only have a Full Exhaust or a DPF pipe added to a kit at a time.
Product Details
2017-2023 CHEVY / GMC L5P + L5D CAB & CHASSIS DURAMAX | CUSTOM GDP OBD2 TUNER + GDP TUNES | BYO EGR DPF DEF COMPLETE DELETE KIT
Scroll down to see menu selections to customize your kit.
This kit is pre-selected with the basic options most customers need to delete their truck, and you can upgrade from there.
COMPATIBILITY
L5D Cab & Chassis Duramax + L5P Duramax Standard Pickup
Fits:
- 2017-2023 Chevy / GMC L5D Cab & Chassis Duramax
- 2017-2023 Chevy / GMC L5P Duramax Standard Pickup
Please confirm your exact truck configuration before ordering.
WHAT THIS KIT INCLUDES
This package is centered around a Custom GDP OBD2 Tuner with GDP custom tuning, with the ability to build out the rest of your delete kit through the menu options below.
Your kit is pre-configured with the common base options, then you can add the upgrades you want for your truck.
OPTIONAL ADD-ONS
Additional options you may want to add:
- 4" T409 stainless steel exhaust
- Muffler to help cut down on drone
- Exhaust tip
- T304 stainless steel downpipe to replace the restrictive factory cat section in the factory downpipe
- S&B cold air intake to help improve airflow and lower EGTs, especially for towing applications
TUNE OPTIONS
Choose the tuning package that best fits your setup:
SINGLE TUNE
Best for customers who want one file loaded and kept simple.
MULTI TUNE PACKAGE
Best for customers who want access to multiple tune files for different driving styles or uses.
WHY CUSTOMERS CHOOSE THIS SETUP
- Build your own complete delete package in one listing
- Custom GDP tuning for your specific truck
- Easy menu-based add-ons
- Cleaner ordering process instead of piecing everything together separately
- Built for customers who want better drivability, towing performance, and a more complete delete package
IMPORTANT TUNING INFORMATION
In order to get GDP tunes, you must fill out the tune order form after purchase.
Once the tune order form is completed:
- Tune turnaround is typically 3 to 5 business days
- Login information will be emailed to you
- You will use the supplied login details to access and download your tune files from tuning.tech
IMPORTANT NOTES
- This is a custom tuning kit with custom tunes and cannot be returned
- Please review all selected options carefully before ordering
- Custom tuning is built specifically for your setup
OFF-ROAD / RACE USE ONLY
This product is intended for off-road / race use only, where permitted.
Customer is responsible for confirming fitment, intended use, and compliance with all local laws and regulations.
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
- 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. - 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. - 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. - 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. - 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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