DPF/DEF/EGR All-in-One Delete Kit for 2017-2023 6.6L Duramax L5P 2500HD 3500HD
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Product Information +
- Brand: SPELAB
- SKU: SPOS20049-BK-ES08120-JN-EP13-00004017
- Availability: Many in stock
- Product Type: Delete Kit
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PLEASE NOTE!
Please Note
- All tunes are custom and non-refundable under ANY circumstances.
- EZ LYNK tuning files require 7–10 business days to create. DO NOT install delete parts early.
- For L5P 2017-2023: Your truck needs CAN BUS PLUG(click to purchase) to operate correctly.
- Important (L5P 2017–2018): Requires a GM E41 ECM unlock service or an unlocked ECM before tuning. (click to purchase ECM 41 unlock kit)
- You may be charged import fees. Please accept the delivery and contact us at service@spelabautoparts.com to resolve any charges. Thanks!
- Does not fit Cab & Chassis trucks.
Unlock the true potential of your 2017-2023 GM 6.6L Duramax L5P. This package combines a T409 DPF Delete Pipe, EGR Delete Kit, and EZ Lynk tuner (with device and SOTF tunes) to address common factory limitations and enhance performance.
Key Features
- Eliminates DPF & EGR Issues - Removes the factory DPF, preventing forced regenerations and engine power limiting. Deletes the EGR system to lower engine temperatures and reduce intake carbon buildup, promoting long-term reliability.
- Customizable On-Demand Power - The EZ Lynk device with SOTF tunes allows you to switch power levels instantly (e.g., Economy, Tow, Performance) for better drivability, fuel efficiency, and significant horsepower gains.
- Overall Performance Gains - Delivers stronger throttle response, lower exhaust temperatures, and a more robust sound. Reduces vehicle weight and eliminates the future cost of DPF/EGR system repairs.
EZ Lynk Key Features
How the EZ LYNK Duramax Package Works
The Auto Agent 3 connects to your truck’s OBD2 port and links with the EZ LYNK app, giving your technician direct access for updates, troubleshooting and tune delivery via Wi-Fi. NOTE: Tuning does not support PTO units.
60-Second Simple Setup:
- Plug the device into your Duramax OBD2 port.
- Install the EZ LYNK Mobile App on Android or iOS.
- Connect via Wi-Fi, and you're all set for Cloud-based vehicle tuning.
Advanced Diagnostic Scan Tool:
- Connected OBD scan tool for you and your technician.
- Read and clear Diagnostic Trouble Codes (DTC).
- Perform recommended functions and install firmware updates over the air.
Cloud-Connected Tune Management:
- Access and install tune files directly through the EZ LYNK cloud interface.
- Switch between power levels or towing calibrations anytime, anywhere.
- Automatic data sync ensures VIN-locked tuning integrity and reliability.
Fleet-Ready Functionality:
- Ideal for both single-truck owners and fleet managers.
- Share data logs, maintenance reports, and diagnostics remotely.
- Enable multiple user access for simplified management and communication.
Platform Compatibility:
- Web Portal: Access and manage tunes from any browser.
- EZ LYNK App: iOS 12.0+ and Android 8.0+ compatible for wireless management.
Installation
6.6L Duramx DPF Delete Pipe Instruction
2017-2025 6.6L Duramax EGR delete kit instruction
EZ Lynk Installation Instruction
How to Choose DPF Delete Kit?
4” vs 5” Straight Pipe Comparison
When choosing a 6.6 Duramax delete pipe, the most common options are 4-inch and 5-inch straight pipes.
The 4-inch straight pipe delivers a tighter, raspier exhaust note—especially noticeable at lower RPMs—making it ideal for daily driving or mildly tuned setups where excessive drone is undesirable.
In contrast, the 5 inch straight pipe 6.7 Duramax offers a deeper, more refined tone with less high-pitch resonance. It excels in high-output builds and towing scenarios, where increased exhaust flow is beneficial.
Driver feedback suggests:
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4”straight pipe is great for stock-to-lightly-modded trucks and a quieter cabin
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5”straight pipe is perfect for aggressive builds, deeper tone lovers, or anyone maximizing exhaust performance
Different Types of DPF Delete
DPF Race Delete
- Only removes the DPF (keeps stock downpipe)
- Minimal performance gain but cheapest option
- Best for budget-focused or emissions-testing avoidance
Downpipe-Back Delete
- Replaces exhaust from the turbo downpipe backward
- Improves mid-range power and throttle response
- Good for street builds keeping stock turbo
Turbo Back Delete
- Full system replacement from turbo outlet
- Includes high-flow downpipe for maximum efficiency
- Reduces turbo lag and boosts top-end power
- Top choice for tuned/high-performance engines
