DPF/EGR/DEF Delete 2017-2023 L5P 6.6L GM/Chevy Duramax All-in-One Kit

Regular price $3,166.99
Regular price $3,699.00 Sale Sale price $3,166.99

Note: Does not fit Cab&Chassis.

Tuner
EGR Delete Kit
DPF Delete Pipe
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Fitment

  • 2017–2023 Chevrolet Silverado 2500 / 3500 HD 6.6L L5P Duramax
  • 2017–2023 GMC Sierra 2500 / 3500 HD 6.6L L5P Duramax

DPF Delete Pipe: 2017–2019 vs. 2020–2023 are different. Please select the right option.

Important Information

  • Your package may be subject to import fees. Please accept the delivery and email us at service@spetuner.com to resolve any charges. Thanks!
  • All tunes are non-refundable – Once purchased, they cannot be returned or refunded. Please verify compatibility and confirm your selection before completing your order. If you have any questions, feel free to contact our support team.
  • READ EVERY STEP BEFORE YOU MAKE ANY MODIFICATIONS TO YOUR TRUCK.
  • Please note that the Tuner requires custom file creation. Once you receive the product, please contact us for assistance.

Description

Looking for a complete L5P delete solution for your 2017–2023Duramax? Our best-selling L5P full delete kit removes the restrictive emissions systems (DPF, EGR, DEF) and replaces them with premium parts — custom tuner. This is the most trusted L5P Duramax delete kit for owners who want more power, better MPG, and fewer maintenance issues.

Key Features

Deleting emissions components is about more than just power. Here’s what you can expect:

  • Massive Performance Gains Get improved horsepower, torque, turbo spool, and shift quality
  • Fuel Economy Boost Reduced backpressure and better combustion translate into MPG savings
  • Lower Maintenance Costs Say goodbye to clogged DPFs, failed sensors, and costly DEF refills
  • Cooler Running Engine Removing EGR and DPF reduces EGTs, helping your engine and turbo live longer
  • Off-Road Ready Designed for off-highway and competition use where emissions compliance is not required

Why Choose Ours L5P Duramax Delete Kit?

The Spetuner L5P Duramax Delete Kit is a comprehensive, all-in-one performance solution engineered for the 2017-2023 6.6L Duramax. This kit integrates high-grade hardware with advanced digital tuning to unlock maximum engine efficiency and longevity.

  • Complete Package: Includes EGR delete kit, DPF delete, DEF delete, and a flash tuning interface with unlock tool and pre-loaded tunes.

  • Precision Tuning: Built specifically for 2017–2023 L5P Duramax engines, optimizing for fuel economy, throttle response, and towing power.

  • Wide Vehicle Compatibility: Fully compatible with GMC Sierra and Chevrolet Silverado 2500/3500 HD platforms, ensuring easy installation and OEM-style fit.

Note: Reading and data logging with HP Tuners is free and does not require credits. Credits are only needed when licensing a vehicle to flash/write a tune.

What’s Included?

L5P EGR Delete Kit

Technical Function: Completely eliminates the Exhaust Gas Recirculation (EGR) system to prevent soot intake and carbon buildup.

Core Benefit: By ensuring cleaner intake air and cooler engine operating temperatures, it significantly improves throttle response and prevents long-term manifold restriction.

DPF & DEF Delete Components

Technical Function: Replaces the Diesel Particulate Filter (DPF) and bypasses the Diesel Exhaust Fluid (DEF) system.

Core Benefit: Enhances exhaust velocity and lowers Exhaust Gas Temperatures (EGTs). This modular upgrade reduces maintenance costs by eliminating common sensor failures and DEF-related downtime.

OBD2 Flash Tuning Interface & Unlock Tool

Technical Function: Provides direct ECM calibration via the OBD2 port without requiring a physical ECM swap.

Core Benefit: Includes preloaded performance tunes ranging from 0HP to +150HP. The integrated unlock tool simplifies the installation process by eliminating the need for crank relearn or core returns.

Selectable Power Levels (only for 2017–2023 SOTF):

 1 2 3 4 5
0HP 50HP 75HP 100HP 150HP

We strongly recommend monitoring EGTs when using Levels 4 & 5.

Custom Exhaust Configuration Options

Technical Function: Modular exhaust upgrades including 4" or 5" downpipe-back systems.

Core Benefit: Available with optional mufflers or dual-exit configurations, allowing for precise control over exhaust sound, backpressure reduction, and aesthetics.

L5P Performance Optimization Summary

Component Feature Performance Gain
EGR Delete Soot Elimination Improved Engine Longevity
DPF/DEF Delete Flow Optimization Increased HP & Lower EGTs
Flash Tuner Custom Tuning 0HP to 150HP Power Levels

Spetuner combines premium L5P performance parts with proven tuning technology to unlock your truck’s full potential. You can check our article on L5P Duramax Delete Guide 2017-2023.

Q: Will this delete kit fit all 2017–2023 L5P Duramax trucks?

A: Yes. This kit is fully compatible with all 2017 to 2023 GMC Sierra 2500/3500 HD and Chevrolet Silverado 2500/3500 HD models equipped with the 6.6L L5P Duramax engine.

Q: What emissions systems are removed with this kit?

A: This all-in-one kit deletes the DPF (Diesel Particulate Filter), DEF (Diesel Exhaust Fluid) system, and the EGR (Exhaust Gas Recirculation) system for improved performance and reliability.

Q: Is tuning included with the kit?

A: Yes. Orders placed after March 27, 2025 include custom tuning, the OBD2 Flash Tuning Interface, and an Unlock Tool. Preloaded tunes offer horsepower gains from 0HP up to +150HP.

Q: Will my L5P throw a check engine light (CEL) after install?

A: No. Our tuning is specifically calibrated to disable all emissions-related trouble codes (DTCs) and prevent CEL or limp mode activation.

Q: Is the 2020–2023 L5P ECM supported?

A: Yes. Our 2020+ L5P delete kit fully supports newer ECMs. No ECM replacement, core exchange, or crank relearn is required—everything is handled through the included unlock tool.

Q: Can I choose different exhaust configurations?

A: Absolutely. You can select from a delete pipe, 4” or 5” downpipe-back exhaust systems, with options like mufflers or dual exit for specific years (e.g., 2017–2019 dual exit available).

Q: Is this kit street legal?

A: No. This kit is intended for off-road and competition use only. It is not legal for street use in emissions-regulated areas and should not be installed on vehicles operated on public roads.

Q: Do I need to send in my ECM or TCM for tuning?

A: No. The kit includes an Unlock Tool, eliminating the need to ship your ECM. You can flash tunes directly through the OBD2 interface without downtime.

Q: What kind of performance improvement can I expect?

A: Most users report gains of +50 to +150 horsepower, improved throttle response, lower exhaust gas temperatures (EGTs), and better fuel economy—especially under heavy towing.

Q: Is this delete kit DIY-friendly?

A: Yes, if you have basic mechanical skills. The kit includes step-by-step installation guides and video tutorials. However, professional installation is recommended for exhaust system components.

Q: What's the best L5P delete kit for Duramax?

A: The "best" L5P delete kit depends on your budget and needs, desired performance. But the all-in-one L5P bundle with tuning is always recommended for all of you. Check our detailed how to choose best l5p delete kit guide.

Customer Reviews

Based on 1 review
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J
Johnny Livingston
It's a good kit

It just doesn't come with the tune for your truck