EGR/DPF Delete 2017-2025 L5P 6.6L Duramax Applicable Product

EGR/DPF Delete 2017-2025 L5P 6.6L Duramax Applicable Product

EGR/DPF Delete 2017-2025 L5P 6.6L Duramax Applicable Product Bundle takes care of DPF & EGR delete and includes a downpipe and CAN BUS plugs to ensure smooth truck operation. Key Benefits include lower exhaust backpressure, better exhaust flow, and ultimately, engine performance. For off-road and competition use only.

Note: Keep the CAN BUS alive to the fuel tank and maintain normal ECU operation for fuel tank/lift pump data.

EGR/DPF Delete 2017-2025 L5P 6.6L Duramax Applicable Product Key Benefits

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 hard parts needed to fully delete your 2017-2025 L5P 6.6L Duramax Diesel

EGR/DPF Delete 2017-2025 L5P 6.6L Duramax Applicable Product Package Include

EGR Delete Kit

DPF Delete Kit 

Downpipe Exhaust

CAN BUS Plug Kit (2017+ L5P 6.6 Duramax Chevy GMC)

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

2017-2025 L5P 6.6L Duramax EGR Delete Kit Specification

2017-2025 L5P 6.6L Duramax DPF Delete Kit Specification

4'' vs 5'' DPF Delete Pipe Comparison

• 4-inch Pipe: Produces a tighter, raspier exhaust note—especially noticeable at lower RPMs. Ideal for daily driving or mildly tuned trucks where excessive drone is undesirable.
• 5-inch Pipe: Delivers a deeper, more refined tone with less high-pitch resonance. Better suited for high-output builds and towing applications, where improved exhaust flow is beneficial.

Driver Feedback Summary

• The 4" pipe works well for stock or lightly modified trucks and a quieter cabin.
• The 5" pipe is perfect for aggressive builds, deep-tone enthusiasts, and those maximizing exhaust performance.

Types of DPF Delete Kits

DPF Race Delete

• Removes only the DPF (retains stock downpipe)
• Offers minimal performance gains but is the most budget-friendly
• Best for cost-conscious users or avoiding emissions testing

Downpipe-Back Delete

• Replaces the exhaust from the turbo downpipe back
• Improves mid-range power and throttle response
• Ideal for street builds using the stock turbo

Muffler vs. No Muffler

With Muffler

• Reduces exhaust noise for daily driving
• Slight power restriction (~5–10 HP)
• More likely to comply with local noise regulations

Straight Pipe (No Muffler)

• Loud, aggressive exhaust tone
• Unrestricted flow for maximum horsepower
• Often not street-legal due to noise and emissions rules
• Intended for off-road or race use only

2017-2025 L5P 6.6L Duramax Downpipe Exhaust Specification

• Material: Stainless Steel
• Surface: Mirror Polish

OE vs. DPFexhaust Downpipe

What's the Difference Between a Downpipe and an Exhaust?

Upgrading the downpipe = performance and throttle response
Upgrading the exhaust = tone, flow, and backpressure control

2017-2025 L5P 6.6L Duramax CAN BUS Plug Kit Specification

EGR/DPF Delete 2017-2025 L5P 6.6L Duramax Applicable Product Installation Guide

Check L5P 6.6 Duramax 4" DPF Downpipe Installation Guide

Check L5P 6.6 Duramax EGR Delete Installation Guide

Shipping & Returns

Free & Fast Shipping Policy

Your order will be dispatched within 1-2 business days, and the package will arrive within your order's estimated date. Click for Shipping Policy.

Free & Easy Return Policy

Every order comes with a 14-day free return, which means you don't have to pay for a return slip. Click for Return Policy.

EGR/DPF Delete 2017-2025 L5P 6.6L Duramax Applicable Product Fitment

2017-2025 L5P 6.6L Duramax Diesel GMC Sierra / Chevrolet Silverado 2500 3500 HD

Note: To Ensure Correct Fitment for your 2017-2019 Duramax, check the color of the CAN bus plug on your vehicle: black vehicle plug -> order the BLACK kit; white vehicle plug -> order the WHITE kit. Kits are color-specific and will not work if the color is mismatched.

EGR/DPF Delete 2017-2025 L5P 6.6L Duramax Applicable Product FAQs

Q. Is this L5P Delete Kit compatible with all 2017-2025 L5P Duramax models?
A: Yes, this kit is specifically designed to fit all 2017–2025 GMC Sierra 2500/3500 HD and Chevrolet Silverado 2500/3500 HD trucks equipped with the 6.6L L5P Duramax diesel engine. Whether you have a 2017 or a 2025 model, the fitment is seamless.

Q. Does this kit include everything needed to fully delete the EGR and DPF systems?
A: Absolutely. The package includes a complete EGR delete kit, DPF delete race pipe, downpipe, up-pipe, and a CAN BUS plug tailored for the 2017–2025 L5P. This is a full delete solution, engineered for performance and reliability.

Q. Will I need to tune my ECU after installing this kit?
A: Yes. A custom ECU tune is required after installation to disable the EGR/DPF functions and related trouble codes. We strongly recommend pairing this kit with a quality tuning solution to fully unlock the benefits and prevent warning lights.

Q. Are there any differences between the 2020 L5P Delete Kit and other model years?
A:The core components remain consistent, but the CAN BUS plug design varies slightly between 2017–2019 and 2020–2025 models. DPFExhaust provides year-specific parts to ensure plug-and-play compatibility for your truck.

Q. What impact does deleting the EGR and DPF have on the engine and turbo system?
A: Removing the EGR and DPF reduces exhaust backpressure, improves turbo response, lowers combustion temps, and significantly reduces carbon buildup. This results in better reliability and longer life for your engine and turbo system.

Q. How much horsepower and torque gain can I expect with this kit?
A: Depending on your tune and setup, you can expect gains of 50-100+ horsepower and 100-150 lb-ft of torque. Results will vary based on vehicle condition and tuning strategy.

Q. Is this kit street-legal?
A: This product is intended for off-road, competition, or agricultural/industrial use only. Removing emissions equipment is illegal on public roads in many states. Please check and comply with your local regulations before purchase or installation.

Q. How difficult is the installation? Can I do it myself?
A: Installation requires solid mechanical knowledge and experience. Because it involves exhaust modification and ECU tuning, we highly recommend having a professional mechanic perform the installation to ensure everything runs safely and correctly.

Q. What materials are used in DPFExhaust’s L5P Duramax Delete Kit?
A: We use high-grade stainless steel for the downpipe and DPF delete pipes, with precision laser-cut flanges and TIG welding to ensure durability, corrosion resistance, and long-lasting performance under heavy-duty conditions.

Q. After installing the 2017-2025 L5P 6.6 Duramax Delete Kit, will there be any extra maintenance needed?
A: Overall, maintenance becomes easier. Without DPF regeneration and EGR soot buildup, oil contamination is reduced, and the turbo and intake system stay cleaner. We recommend periodic inspection of exhaust flanges and welds for tightness and integrity.