DPF/CCV/EGR/DEF All-in-One Delete Kit 2017-2025 L5P 6.6L Duramax 2500HD 3500HD

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Note

• Our products won't include credits and tune file. You can click HERE to buy Tune File & Credits.
• Tuner- Read every step(INSTRUCTIONS) before you make any modifications to your truck.

Fitment

• 2017+ L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD
• 2017+ L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 HD
• Note: OBDII Tuner only compatible with 2017-2023 L5P 6.6L Duramax
• Not compatible with cab and chassis models

Key Features

Full Delete, Full Potential

SPELAB’s 2020 L5P Delete Kit and 2024 Duramax Delete Kit are engineered for maximum performance. Beyond removing factory DPF, EGR, and CCV systems, this bundle also includes a dual-exit exhaust system and high-flow downpipe, dramatically improving exhaust flow, throttle response, and long-term engine health. For newer trucks like the 2024 Duramax, where emissions systems are more integrated and restrictive, this kit offers a clean, reliable upgrade path.

OBDII Flash Delete Tuning Interface:

The included OBDII Flash Delete Tuning Interface allows for seamless tuning adjustments, enabling you to customize your vehicle's performance parameters directly through the OBDII port.

Note: To fully optimize your vehicle using the OBD2 Flash Delete Tuner, you will need  the appropriate number of credits, and a compatible tune. (You can add it form “products add-ons” on this page)

SOTF tuning utilizes factory steering wheel controls for seamless power level adjustments.

Benefits achieved from this duramax delete kit:

• Free-flowing exhaust system for more power and better fuel economy
• Improved combustion chamber temperatures
• Better longevity of your engine's cooling and exhaust system
• Increased power from more powerful tune flashes
• All the necessary parts needed to fully delete your 2017+ L5P 6.6L DURAMAX APPLICABLE PRODUCTS

What's in the Box

• EGR Delete Kit
• DPF Delete Kit 
• Downpipe Exhaust
• CCV Reroute/delete kit
• Tuner Delete – OBDii Flash Delete Tuning Interface (not including tune and required credits)
  
• DPF Delete Dual Exhaust

Note: Accessories vary by order and may not include all listed.

2020-2024 6.6L Duramax L5P EGR Delete Install Instructions

2017-2025 6.6L Duramax L5P EGR Valve Cooler Delete Kit Install Instructions

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User Tips, Install Notes & Precautions

Install Tips & Real-World Feedback

If you're mechanically inclined, installing the full delete system on a 2020 L5P or 2024 Duramax is straightforward for the most part. The DPF and CCV removal involve basic unbolting and rerouting. However, the EGR system can be tricky—bolts connecting the EGR inlet pipe to the exhaust manifold are notorious for snapping. We strongly recommend having sharp drill bits and a helicoil thread repair kit on hand before starting.

Tuning Considerations

While the OBDII tuning interface is included, tune files and credits are sold separately. For best results, choose reliable tuning partners such as AMDP or EZLynk with GDP tunes, especially for newer 2024 Duramax models. Some ECUs may still be locked and require custom solutions.

Keep OEM Parts & Protect Wiring

Many owners suggest keeping all OEM emissions parts if you ever plan to revert the truck to stock or trade it in. Also, for any unplugged connectors under the truck, apply dielectric grease and use sealed plug caps to prevent corrosion and ensure safe long-term operation.

Comprehensive Solution

SPELAB's all-in-one kit includes everything you need for a complete system overhaul, from the Duramax EGR delete kit to the DPF delete kit and CCV filter. This ensures that all components work harmoniously for maximum performance gains.

High-Quality Materials

Each part in the kit is made from high-quality materials, ensuring durability and long-lasting performance. SPELAB auto parts are designed to withstand harsh conditions and deliver consistent results.

Proven Performance

SPELAB has a strong reputation in the automotive performance parts industry. Our products, including the Duramax DPF delete kit, are tested and proven to deliver significant performance improvements.

Customer-Centric Approach

We prioritize our customers' satisfaction. From providing detailed installation guides to offering excellent customer support, SPELAB ensures a smooth and satisfying experience.

Cost-Effective

Purchasing the all-in-one kit is more cost-effective than buying individual components separately. It also simplifies the installation process and guarantees compatibility, saving you time and money.

Transform your vehicle's performance with the SPELAB DPF/CCV/EGR/DEF Delete Kit. Order now and experience unparalleled driving efficiency and power.

Conclusion

The SPELAB DPF/CCV/EGR/DEF Delete Kit for the 2017-2023 L5P 6.6L Duramax is a comprehensive solution designed to enhance your vehicle's performance, reliability, and longevity. By integrating high-quality components such as the Duramax EGR delete kit, Duramax DPF delete kit, CCV filter, and more, this all-in-one kit ensures seamless compatibility and optimal performance.

With SPELAB auto parts, you benefit from improved engine efficiency, reduced maintenance costs, and a better driving experience. Our commitment to quality and customer satisfaction guarantees that you receive the best products and support available.

Upgrade your GMC Sierra or Chevrolet Silverado today with SPELAB's all-in-one delete kit and unlock your vehicle's full potential. Order now and enjoy the superior performance and durability that SPELAB is known for.

Ready to take the next step? Purchase the SPELAB DPF/CCV/EGR/DEF Delete Kit now and transform your driving experience.

FAQs

Q1: Can I reuse this 2020 L5P delete kit on a 2024 Duramax?
A1: The hardware components (DPF/CCV/EGR delete parts) may be compatible, but ECU tuning support differs significantly. The 2024 Duramax uses a more secure control module, and tunes developed for 2020 may not apply. Always check with your tuner before reuse.

If you own a 2011-2016 LML engine, Check out our All-in-One LML Duramax Delete Kit (includes EGR, DPF, DEF, and CCV deletion with a tuning device).

Q2: Will installing a 2024 Duramax delete kit affect my truck’s resale value?
A2: Yes, it can. While performance enthusiasts may value the mod, dealerships typically reject deleted vehicles for trade-in. To preserve value, store all OEM emissions parts and consider a reversible tuning strategy.

Q3: Does deleting impact DEF usage and regeneration cycles?
A3: Absolutely. Once your DPF and SCR are deleted, DEF is no longer required, and regen cycles are disabled. This results in lower operating costs and eliminates DEF-related maintenance. However, this is strictly for off-road use.

Q4: Do I need custom tunes or are pre-loaded tunes enough for a full delete?
A4: Pre-loaded tunes can work, but they may not match your truck’s setup or driving goals. For optimal reliability, especially on a 2024 Duramax delete kit, request a VIN-matched custom tune from a trusted provider.

Q5: Will I hear a difference in exhaust sound after installing the delete kit?
A5: Yes. With the DPF and muffler removed, you'll hear a much deeper, more aggressive exhaust tone. Many users with 5" straight pipe setups on 2020+ L5P Duramax trucks describe it as "truck should sound like a truck."

Q6: Is the tuner included in the delete kit locked or open to additional tuning?
A6: SPELAB's tuner interface is unlocked, allowing for custom tunes to be flashed via OBDII. However, tunes and HP Tuners credits are sold separately, giving you the flexibility to work with your preferred calibration shop.

Q7: Will I see fuel economy gains after deleting my 2020 or 2024 Duramax?
A7: Many owners report increases from 13–15 MPG (stock) to 17–20 MPG post-delete, depending on driving habits and load. This is due to eliminating exhaust restriction and reducing regen fuel burns.

Q8: Can I restore my truck to factory emissions setup later?
A8: Yes—if you've retained all OEM parts and protected wiring plugs. Many users reinstall stock systems when selling or moving to emissions-restricted areas. Plug cap kits and dielectric grease are highly recommended during the delete process.

Q9: What kind of maintenance is required after installing this kit?
A9: Regular maintenance checks on the exhaust and filtration systems are recommended to ensure optimal performance and longevity.

Q10: Can I use this kit in all driving conditions?
A10: Yes, the components are designed to withstand various driving conditions, but always follow recommended maintenance and inspection schedules.

Q11: Where can I get support if I encounter issues with the kit?
A11: You can contact SPELAB customer service via email at service@spelabautoparts.com for any questions or support needed.

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