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

L5P Delete Kit for 2017–2023 Duramax

DPF, DEF, EGR Removal with Tuning Included

Upgrade your 2017–2023 GMC Sierra or Chevrolet Silverado 2500/3500 HD with the ultimate L5P delete kit from SPETUNER. Designed specifically for L5P 6.6L Duramax diesel engines, this all-in-one package eliminates factory emissions systems (DPF, DEF, and EGR) and replaces them with high-performance components. It also delivers custom tuning through a plug-and-play OBD2 interface.

Why Choose Our L5P Duramax Delete Kit?

Our kit is more than just parts—it's a full performance solution for your truck. Here's why diesel enthusiasts across North America choose SPETUNER:

• ✅ 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.

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

Whether you're daily driving, hauling loads, or building an off-road beast, our L5P Duramax delete kit is engineered for peak performance.

What’s Included in the SPETUNER L5P Delete Kit?

This all-in-one solution includes everything you need for a complete emissions delete and custom tune:

✔️ EGR Delete Kit for L5P Duramax

• Removes the exhaust gas recirculation system

• Reduces carbon buildup and improves combustion efficiency

• Enhances throttle response and engine reliability

✔️ DPF & DEF Delete Components

• Deletes diesel particulate filter and diesel exhaust fluid systems

• Improves exhaust flow and lowers EGTs

• Reduces maintenance, sensor failures, and DEF system issues

✔️ OBD2 Flash Tuning Interface + Unlock Tool

• Easy plug-and-play tuning with no ECM swap required

• Comes with preloaded tunes (0HP, 50HP, 75HP, 100HP, 150HP)

• Unlock tool eliminates the need for crank relearn or core returns

✔️ Exhaust Options

• Choose from delete pipe, 4" or 5" downpipe-back systems

• Optional mufflers or dual exit configurations for sound customization

Benefits of Using an L5P Delete Kit

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

Best L5P Delete Kit for 2017+ Models

Got a newer truck? Our L5P delete kit is fully compatible with updated ECMs and emission configurations.

• Supports latest GM security protocols

• No need to ship your ECM for unlock

• Works with all 2020–2023 L5P GMC/Chevy trucks

If you're looking for the best L5P delete kit for modern trucks, this is it—complete, compatible, and powerful.

Installation Guide and Support

🧰 Easy DIY Installation

Every kit comes with a full-color installation manual and step-by-step video guides, making it easy for DIYers or shops to complete the job.

👨🔧 Expert Technical Support

Do you have questions? Our support team is standing by to help you troubleshoot, tune, or optimize your setup for your specific truck and needs.

Why SPETUNER?

We’re more than just parts—we’re diesel performance enthusiasts.

• 💪 Trusted by Duramax Owners across the US and Canada

• 🛠️ Premium Materials built to withstand heat and vibration

• 🚚 Fast Shipping & Easy Returns

• 📞 Responsive Support Team that speaks your language

From install to first rip, SPETUNER’s got your back.

⚡ Upgrade Your L5P Duramax Today

Don’t settle for factory restrictions. Free your 2017–2023 GMC or Chevy L5P Duramax from DPF, DEF, and EGR limitations and enjoy the driving experience you were meant to have.

👉 Shop SPETUNER’s L5P delete kit now and experience next-level power and efficiency.

Q1: Will this delete kit fit all 2017–2023 L5P Duramax trucks?

A1: 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.

Q2: What emissions systems are removed with this kit?

A2: 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.

Q3: Is tuning included with the kit?

A3: 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.

Q4: Will my L5P throw a check engine light (CEL) after install?

A4: No. Our tuning is specifically calibrated to disable all emissions-related trouble codes (DTCs) and prevent CEL or limp mode activation.

Q5: Is the 2020–2023 L5P ECM supported?

A5: 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.

Q6: Can I choose different exhaust configurations?

A6: 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).

Q7: Is this kit street legal?

A7: 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.

Q8: Do I need to send in my ECM or TCM for tuning?

A8: 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.

Q9: What kind of performance improvement can I expect?

A9: 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.

Q10: Is this delete kit DIY-friendly?

A10: 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.