EGR Valve Cooler Delete Kit for 2017-2023 L5P 6.6L Duramax
This EGR delete kit features a material upgrade from using aluminum alloy to solid carbon steel, and hence increased the maximum temperature resistance from 1,112 degrees Fahrenheit to 2,732 degrees Fahrenheit.
This unit effectively prevents soot buildup and EGR valve clogging, allowing fresh, dense, clean air to circulate instead of reintroducing hot exhaust gases.
Fitment
- 2017-2023 L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD
- 2017-2023 L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 HD
* Doesn't fit Cab & Chassis trucks.
* For more Duramax models, check out our LBZ egr delete kit (2006-2007), LMM egr delete kit (2007.5-2010) and LML egr delete kit for 2011-2016 trucks.
Product Details and Specifications

Material:
- Billet aluminum construction
- Nickel-plated steel flanges
- Stainless steel dipstick tube bracket
- High-temp silicone hoses
- Zinc-coated hardware
Installation Guide
Click here to see the installation guide.
Installation takes approx. 2 hours with basic hand tools.
Tuning before installation is required to prevent any check engine light or diagnostic trouble codes.
*Compatible tuner: EZ LYNK Tune Package for 2017-2023 L5P 6.6L Duramax
FAQs
Q: What is a 2020 L5p Duramax EGR delete kit?
A: A 2020 Duramax EGR delete kit removes the EGR valve and cooler from your 6.6L L5P Duramax engine. Removing the EGR system improves fuel efficiency and engine long-term reliability.
Q: Will this EGR delete kit fit my 2018 Chevrolet Silverado 2500 HD?
A: Yes, the kit fits 2017–2023 Chevrolet Silverado and GMC Sierra 2500/3500 HD models equipped with the 6.6L L5P Duramax diesel engine, including your 2018 Silverado.
Q: Is the installation process complicated?
A: No. Check here for the step-by-step installation guide. Most DIY enthusiasts with basic tools can complete the job in a few hours.
Q: What are the benefits of installing an EGR delete kit?
A: Key benefits include improved throttle response, reduced soot accumulation, lower exhaust temps, and better fuel economy. It also helps maximize the efficiency of 2017–2023 L5P engines.
Q: Will this delete kit void my vehicle's warranty?
A: Yes, deleting emissions components -- such as EGR -- might void your factory warranty. It's important to review your warranty terms or consult a professional mechanic before installation.
Q: Is the L5P Delete Kit legal to use?
A: This EGR Delete Kit is intended for off-road and competition use only. Check local emissions laws before installing.
Q: Will my 2021 GMC Sierra pass emissions with this kit installed?
A: No. Removing emissions equipment like EGR typically causes the vehicle to fail emissions testing.
Q: What tools are needed to install the EGR Delete Kit?
A: Basic tools like wrenches, sockets, and screwdrivers are sufficient. The kit includes all necessary hardwares tailored for 2017–2023 L5P Duramax trucks.
Q: What should I do if I encounter issues during installation?
A: Check the installation instruction. For further support, contact our customer service for help: service@dpfexhaust.com.
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.
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.