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Duramax Performance Parts, Delete Kits & Tuning | L5P, LML, LMM, LM2, 3.0 & More

Shop EGR delete kits, tuners and exhaust upgrades built to boost power and save fuel. Perfect for hardworking truck owners!

69 products

Duramax Performance Parts, Delete Kits & Tuning | L5P, LML, LMM, LM2, 3.0 & More

Duramax Diesel Performance: Precision Engineered Upgrades for Every Generation

Welcome to the ultimate collection of Duramax performance parts, meticulously organized by engine generation for perfect application matching. Whether you're building a competitive tow rig or enhancing your daily driver's capabilities, you'll find precisely what you need for your GM or Chevrolet diesel truck.

6.6L Duramax L5P (2017-2026) Parts & Tuning ➤

Advanced performance solutions for the modern L5P Duramax - cutting-edge technology meets proven power.

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All-In-One Kits:

  • GM Duramax L5P - All-In-One DPF/DEF/EGR Delete Kit (2017-2025)

EGR & Cooling Solutions:

  • GM Duramax L5P EGR & Cooler Delete Kit (2017-2025)

Exhaust Systems:

  • GM Duramax L5P - Down-pipe Back Race Exhaust System (2017-2025)
  • GM Duramax L5P Cat & DPF Delete Pipe (2017-2025)
  • GM Duramax L5P 3.5' Down-pipe (2017-2023)

Intake & Induction:

  • GM Duramax L5P - Cold Air Intake (2017-2024)
  • GM Duramax L5P 6.6L Turbo Intake Horn (2017-2025)
  • GM Duramax L5P 6.6L - CCV Upgrade Kit (2017-2024)

Tuning & Electronics:

  • GM Duramax L5P - SOTF Tune Package (2017-2025)
  • GM Duramax L5P - TCM Tuning Upgrade Kit (2017-2023)
  • GM Duramax L5P - TCM Tune (2017-2023)
  • GM Duramax L5P - ECM E41 Upgrade & Unlock Kit (2017-2023)
  • GM Duramax L5P - Unlocked E41 ECM (2017-2023)
  • GM Duramax L5P - CAN BUS Plug Kit (2017-2023)

Engine Components:

  • GM Duramax 6.6L L5P - Stainless Up-Pipes (2017-2024)

6.6L Duramax LML (2011-2016) Parts & Tuning ➤

Comprehensive upgrades for the LML generation - enhanced reliability and performance.

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All-In-One Kits:

  • GM Duramax 6.6L All-in-One DPF/DEF/EGR LML Delete Kit (2011-2016)

EGR Solutions:

  • GM Duramax 6.6L EGR & Cooler Delete Kit (2011-2016)

  • GM Duramax 6.6L EGR & Cooler Delete Kit (2011-2014)

  • GM Duramax LML Grid Heater Throttle Valve Delete (2011-2016)

  • GM LML Duramax 6.6L EGR Delete Shim Kit (2011-2016)

Exhaust Systems:

  • GM Duramax LML Down-pipe Back Race Exhaust (2015.5-2016)

  • GM Duramax 6.6L Downpipe-Back Race Exhaust (2011-2015)

  • GM Duramax 6.6L Cat & DPF Delete Pipe (2015.5-2016)

  • GM Duramax 6.6L Cat & DPF Delete Pipe (2011-2015)

  • GM Duramax LML 3' Down-pipe (2011-2015)

Intake & Charge Air:

  • GM Duramax 6.6L Cold Air Intake (2011-2016)

  • GM Duramax 6.6L LML - Cold Air Intake (2013-2016)

  • GM Duramax LML - Intercooler Pipe & Boot Kit (2011-2016)

  • GM Duramax 6.6L Intake Bridge (2011-2016)

Fuel System:

  • GM Duramax 6.6L LML CP3 Conversion Kit (2011-2016)

Venting Systems:

  • GM Duramax LML - CCV Upgrade Kit (2012-2016)

6.6L Duramax LMM (2007-2010) Parts & Tuning ➤

Targeted solutions for the LMM Duramax - optimize your truck's performance.

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EGR Solutions:

  • GM Duramax LMM EGR & Cooler Delete Kit (2007.5-2010)

  • GM Duramax 6.6L - EGR & Cooler Delete Kit w/ Up-pipe & Intake Pipe (2007.5-2010)

Exhaust Systems:

  • GM Duramax LMM 4' Down-pipe Back Exhaust (2007.5-2010)

Intake Systems:

  • GM Duramax 6.6L Cold Air Intake (2007.5-2010)

6.6L Duramax LB7/LLY/LBZ (2001-2007) Parts & Tuning ➤

Classic Duramax performance - build reliability and power for the foundation generations.

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EGR Solutions:

  • GM Duramax 6.6L LBZ EGR & Cooler Delete Kit with Up-pipe and Intake Pipe (2006-2007)

  • GM Duramax LBZ Duramax 6.6L EGR Delete Kit (2006-2007)

  • GM Duramax LLY 6.6L EGR Delete Kit (2004.5-2005)

Exhaust Systems:

  • GM Duramax 6.6L Down-pipe Back Race Exhaust (2001-2007)

  • GM Duramax 6.6L Down-pipe (2004.5-2010)

  • GM Duramax 6.6L Down-pipe (2001-2004)

Engine Components:

  • GM Duramax 6.6L Exhaust Manifold Kit w/ Up-Pipe (2001-2016)

  • GM Duramax 6.6L Up-pipe High Flo (2001-2016)

  • GM Duramax 6.6L Gator Head Studs (2001-2016)

  • GM Duramax LLY Y-Bridge Kit (2004.5-2005)

  • GM Duramax LBZ/LMM Y-Bridge Kit (2006-2010)

Charge Air Systems:

  • GM Duramax 6.6L Hot Side Intercooler Charge Pipe Kit (2001-2010)

  • GM Duramax LB7 Intercooler Pipe & Boot Kit (2002-2004)

  • GM Duramax 6.6L Silicone Intercooler Hose Kit (2004.5-2005)

3.0L GM Duramax LM2/LZ0 (2020-2025) Parts & Tuning ➤

Advanced solutions for the 3.0L Duramax compact size, maximum performance.

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All-In-One Kits:

  • GM Duramax LM2 All-In-One DPF/DEF/EGR Delete Kit (2020-2022)

EGR Solutions:

  • GM Duramax LM2 EGR & Cooler Delete Kit (2020-2022)

Exhaust Components:

  • GM Duramax LM2 - Cat & DPF Race Pipe (2020-2022)

Tuning & Electronics:

  • GM Duramax LM2 3.0L OBD2 Power Tuning Package (2020-2022)

  • GM Duramax LM2 3.0L Delete Tune (2020-2022)

  • GM Duramax LM2 - ECM E46 Upgrade & Unlock Service (2020-2022)

  • GM Duramax LM2 CAN BUS Plug Kit (2020-2022)

  • GM Duramax LZO 3.0L - Power Tune (2022.5-2025)

2.8L GM Duramax LWN (2016-2022) Parts & Tuning ➤

Performance upgrades for the Colorado/Canyon Duramax - enhance your midsize diesel.

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Tuning Solutions:

  • GM Duramax LWN 2.8L OBD2 Power Tuning Package (2016-2022)

  • GM Duramax LWN 2.8L - Delete Tune (2016-2022)

EGR Solutions:

  • GM Duramax 2.8L LWN - EGR Delete Kit (2016-2022)

Exhaust Systems:

  • GM Canyon/Colorado Duramax LWN 3' Turbo-Back Race Exhaust (2016-2021)

Universal Duramax Parts ➤

Cross-platform solutions for comprehensive diesel performance.

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Tuning Platforms:

  • GM Duramax 6.6L EFILive AutoCal V3 DPF Delete Tuner (2001-2016)

  • EFI Live AutoCal Tune Package for GM Duramax (2001-2016)

  • EFI Live Autocal V3 DPF Delete Tuner (Blank)

  • Mini Maxx Tuner - V2 | DPF/DEF/EGR Delete Tuner

  • H&S PERFORMANCE Mini Maxx V1 DPF Delete Tuner

  • EZ LYNK Auto Agent 3

  • OBD2 Flash Tuning Interface

  • OBD2 Tuning Credits

Accessories & Switches:

  • SOTF Switches for GM Duramax (2006-2023)

  • GM Duramax 6.6L - Shibby Engineering Tuner Harness Plug Kit (2011-2023)

  • GM Duramax - Unlocked TCM (2017-2023)

Monitoring & Exhaust:

  • Universal Pyrometer (EGT Sensor) & Docking Station

  • Stainless Steel Diesel Muffler

  • Universal Stainless Steel Exhaust Tip Black Bandit

Why Choose Our Duramax Collection?

Application-Specific Engineering

Every component is selected for your specific Duramax generation. We understand the unique requirements of each engine code - from LB7 to L5P - ensuring perfect compatibility and performance.

Proven Performance Heritage

With solutions spanning over two decades of Duramax production, our parts are tested and validated for real-world reliability and power gains.

Expert Technical Support

Our team includes Duramax specialists who understand the nuances of each generation. We're here to help you build with confidence.

Quality You Can Trust

We partner with manufacturers who meet our standards for precision fitment and durable construction, ensuring your investment delivers lasting performance.

Finding the Right Parts for Your Duramax

Selection Tips:

  • Always verify your exact model year and engine code (L5P, LML, LMM, etc.)
  • Note your cab configuration and transmission type
  • Check for specific ECM requirements, especially on 2017+ models
  • Confirm whether your application requires additional controller services

Need Assistance?

Contact our Cummins specialists via Contact Us page for personalized recommendations and technical support.

Build with Confidence - every component in our collection is engineered specifically for Cummins diesel performance and reliability.

Need Help Choosing?

Our diesel specialists can match the right kit to your truck in under 5 minutes.

CALL 866-401-6313

New Customer?

Save $20 on your first tuner or delete kit purchase.