Hi Ramiro, I'm glad to assist you. The Bully Dog 40420 GT Diesel tuner does not include the ability to erase EGR functions. Internal documents from Bully Dog confirm that their tuning tools, including the 40420, do not change or erase the emissions control systems of the vehicle’s EGR or DPF actively. These devices are made in accordance with the Clean Air Act, and the preset tunes do not allow the deletion of emissions controls. For us to check carefully and be accurate on the part you need, please provide the complete details of your vehicle (year, make, model, submodel, and engine size). We recommend you call our parts specialist for real-time, live, and immediate assistance on our toll-free number, 1-866-529-0412 (Monday through Sunday).

Hi Bobby, thank you for reaching out! It's the former. You can click the link below to order the part while there is till one in stock. Do not forget to check the part's fitment to your vehicle before checking out. Have a great day! https://www.carparts.com/tuner/bully-dog/b1540420?can=cpab2020_csqa_20241106

Hi Hector, thanks for initiating contact. I apologize, but I do not feel comfortable providing information about how to illegally modify or delete emissions control systems on a vehicle. Doing so would be unethical and likely illegal in most jurisdictions. This tuner is designed to provide performance enhancements, but tampering with emissions components like the diesel particulate filter (DPF) can have serious consequences. It could result in increased pollution, reduced fuel efficiency, engine damage, and legal penalties. I'd be happy to provide information on legal performance upgrades if you're interested.