2021-2023 3.0L CHEVY/GMC LM2 DURAMAX | COMPLETE DELETE KIT | ECM SEND IN REQUIRED! | E66 ECM's ONLY

Options
NO EGR Delete Kit (Unplug EGR for this option)
ADD EGR Delete Kit
Optional S&B Cold Air Intake
NO Intake
ADD Intake
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Instructions
No installation manuals available for this product at this time. Request a manual here.
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We offer fast and free reliable shipping for all customers to ensure that you receive your products as soon as possible. Shipping generally takes 3-8 days to transit to you depending on where you're located in the US and Canada. Hawaii, Alaska, and other remote areas may take longer and invoke further shipping expense. Please contact us if you're want more information.

Returns

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Product Information

Product Description

2021-2023 CHEVY / GMC LM2 3.0L (E66 ECM SEND IN) COMPLETE DELETE KIT

We've officially launched tuning support for select GM platforms running the E66 ECM - including a range of 3.0L Duramax LM2 SUVs and half-ton pickups. With the proper setup, you can now unlock full calibration control, scanning capabilities, and strong performance gains on late-model diesel platforms.

MUST CHECK ECM! IF E46 PLEASE SEE OUR OTHER OPTION!

Supported Vehicles

  • 2021-2023 Cadillac Escalade 3.0L Duramax LM2
  • 2021-2023 Chevrolet Suburban & Tahoe 3.0L Duramax LM2
  • 2022-2022.5 Chevrolet Silverado 1500 3.0L Duramax LM2
  • 2022-2022.5 GMC Sierra 1500 3.0L Duramax LM2
  • 2021-2023 GMC Yukon 3.0L Duramax LM2

From cleaner shifting and reduced throttle lag to optimized towing performance and improved responsiveness - the difference for your customers is immediate. This isn't Just ECM access it's full control over how their vehicle performs day to day.

WHAT IS INCLUDED

  1. Prepaid Send-In ECM Upgrade 
  2. GDP E66 Tune File 
  3. Tuner Interface - Flash it like the Fourth of July.
  4. Credits - Used to license the ECM post-upgrade
  5. LM2 Canbus Plugs.
  6. FLOPRO DPF delete pipe. 


    EGR Delete Kit. (MUST be added via menu buttons or not included!)
    S&B Cold Air Intake (MUST be added via menu buttons or not included!)


    ATTENTION!
    NEW RELEASE ITEMS AND WE DO NOT YET HAVE MANUALS INCLUDED! ALL MUST BE DONE WITH GDP TECH SUPPORT!


ATTENTION! (INCLUDED - WE PAY SHIPPING + SEND LABEL TO YOU!)
ECM MUST BE SENT IN. 

3.0L Duramax EGR Delete Kit (MUST BE ADDED ON VIA MENU BUTTONS)

Kit Includes:

  • High Quality 4 Ply Silicone Coolant Hose (1x) and Caps (2x)
  • Ground Cable (1x)
  • Blocker Plates for the EGR Valve and Cooler (2x)
  • Intake Plug (1x)

This kit allows the removal of the EGR cooler and valve, exhaust valve, and EGR Cooler Pipe.

EGR Cooler and Valve Removal: 
The LM2 3.0L Duramax EGR Delete Kit is engineered to eliminate the restrictive EGR cooler and valve, liberating your engine from the limitations imposed by recirculating exhaust gases. By removing these components, you enhance airflow and prevent the build-up of carbon deposits, leading to a cleaner and more efficient combustion process.

Exhaust Valve Elimination: 
Bid farewell to the exhaust valve, a component prone to carbon buildup and reduced functionality over time. With the LM2 EGR Delete Kit combined with the race pipe, you eradicate this potential source of engine inefficiency, promoting smoother operation and prolonging the life of critical engine components.

EGR Cooler Pipe Blockage: 
The kit includes a solution for blocking the EGR Cooler Pipe, preventing the unwanted recirculation of hot exhaust gases.

*Professional installation is strongly recommended, as essential engine bay components need removal for the OEM system extraction.

FLOPRO 3.0L Duramax Cat and DPF Delete Pipe

*Professional installation is strongly recommended, as essential engine bay components need removal for the OEM system extraction.

Fabricated from durable 16-gauge aluminized steel, this exhaust system exhibits a precise fit, facilitated by machined flanges and lap joint style clamps. Unlock heightened performance, reduced exhaust gas temperatures, and improved air-flow using this system, all while indulging in its authoritative sound.

Uses the existing Muffler

Powerlevel Options

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Install went awesome, instructions were good and everything went smoother than expected. Thank you.

Anonymous

Excellent!!!!! Everything worked out perfect

Mitchel

Johnson

I am more than happy with it. I have completed the DPF removal and straight pipen install. I have not removed the EGR. I can say that I have picked up more power and 3 more mpg towing. I have an 8k pound bumer pull camper. There is a little black smoke when I punch it; none if I drive "normal". My wife said it is louder, who asked her. I have been on the fence but your price and the extra $100 off, with free shipping was the factor. Thanks for the entire process from ordering to installation videos.

Scott

Stribling

Did exactly what I wanted.... And would definitely recommend

Greg

Borgman

A PLUS. Everything was perfect. Tunes work as they should. Drivability is better than factory programming. Very happy and will buy from again.

Keith

Weston

2016-2019 GMC & CHEVY Colorado & Canyon Duramax | EGR DPF DEF DELETE KIT very nice for both kits i bought you guys, my business will be a returning customer for sure. also very fast shipping awesome Nick Therrien, owner Larocque, Valleyfield, J6T 4c8, QC

Nick

Therrien

Lower RPM when cruising on the highway at 70! 1600 RPM and also a nice gain in mileage.

Brian

J

Everything came in and seems to work just fine. Thanks

Greg

Rinkes

I would just like to say thank you for such a great system your team sold me. I had everything I needed and made this kit installation go very smoothly. I was very nervous going into this, my boys kept telling me it will be fine. The Agent 3 device was such an easy install it was crazy. Everything connected very easily and meshed well with my Banks equipment I added with it. When I have heard folks say it will wake up your truck, I had no idea until I started driving it. Completely different truck. Thank you for supporting this equipment and making this high value upgrade a smooth one. I definitely am spreading your name out there.

Gary

Morrison

Awesome Great job 👏

Jeff

Cooper

The kit was just what I needed. The only thing is there one of the hose connections that is plastic and should be metal. I swaped it out with a metal one and all is good. Thanks for shipping the kit quickly.

Chad

Loker

I'm so happy with the parts and I'll definitely keep buying them for you guys. Thank you.

Nestor

Bueno

These guy(s) are great! Knowledgeable, friendly, helpful. Highly recommended.

Ken

Kilby

Truck runs great thank yall

Fabian

Benavi

EGR kid was a breeze, for me at least. Everything I needed was in the kit. Only thing I want to say to help for future kits, is that the gasket for the intake neck/tube, it was bent and on the verge of tearing. I was able to reuse the original one on my truck since it is a very low mileage truck. Otherwise, thank you and hope I can find something on your website I can use!

Anthony

Bran

Did exactly what it is meant to do... go me back on the road w increased efficiency! Beyond happy with the tuner and it's ability to monitor drivetrain functions while in use! Worth every penny!!

Baros

I'm very happy with the service and the fast response when I had any questions thank you very much

Eliazar

Great company to work with. I had a problem with my order and they took care of it right away. I would recommend them to all my friends.

Dave

S

Will give these guys a 5 star plus! Thanks for the discount and quick shipping. Highly recommended.

Neil

Mayes

I pull a 48ft car hauler with my 2014 Ford 1ton, 5.9mpg and the truck would overheat. Installed the delete kit, no more overheating 12.8mpg. AWESOME THANKS

Bryan

Aaron

You have a very organized company it came right on time thank you

Mary

Clark

My feedback on Jeep Cherokee | Ram 1500 3.0L Eco Diesel EGR DPF DEF Delete Kit: Very happy with the setup. Some issues I had was the exhaust hitting the transmission mount. The bend that it comes with was not enough so it rubs. It needed better instruction for the "Jeep" model EGR Delete. All I could find was for the Ram. The Ram is slightly different than mine is, routing back to firewall heater core hose, mine does not have that and I had to simply cap a line off. The upper had the holes drilled in wrong spots for my metal tube coolant input. I just cut your bracket and deadhead the input side from just the loose piece. Otherwise I am happy I do not have the crap egr,def,and the dpf is gone!!!

Eric W Fulton

Ok. We did the download from your email. TRUCK RUNS GREAT!!! THANK YOU!!!

Michael

Great!!!

Doug

Candler

Awesome products at an amazing price. Everything was so simple to install and program. I would highly recommend your product to everyone

Charlie

Clonch

I want to thank you for your time and patience. Dino diesels is truly an outstanding company. I will definitely recommend you guys when ever I can. Thanks again.

Lance

Benner

Great product will be ordering more very soon!

Jaron

Hastings

You guys did awesome!!!

Whitney

Schiesser

The service that was provided was phenomenal. Couldn't have asked for better service. Placed my order and arrived on a timely manner taken into account I live in Louisiana. Truck sounds great. Thanks again.

Josh

H

Awesome company, great products/tunes!! Very fast customer service!

Brock

M

good tunner worked the way they said.

Bat

Fast shipping and good fitment

Mitchell

White

Very happy

Charlie

Wade

It is amazing! Truck runs like a dream!

Luis

Morato

Worked great

Kenzie

Trucking

Yes, I am definately happy with the products and services I purchased from you! The shipping was fast and secure, arriving within 5 days of ordering. Thank you for a great shopping experience, I have several friends looking for similar products and services, and have directed them towards your company. Thanks again for everything-

James

Dean

Hello, your kit worked awesome. No issues at all. Truck runs great. Thank you

Sun

Man

This kit was the best thing for my truck it like a brand new truck run so good an is bad ass fast now thanks again for great kit an service

Jeff

Watkins

John, I'm a big thumbs up on your team overall. Very pleased with the level of support prior to, during, and after the changes I made. The number one differentiator between your team and others is the ability to pretty quickly get a live person on the phone and if needed for them to remote into the laptop connected to the vehicle. There were a few issues, but quickly addressed and or your guys confirmed for me what was happening and that all was well and as expected. Good work by all! A+ so far! Thanks Chris

Chris

M

A highly recommended group of people. WIlling to help on what would normally be out of business hours. I'll be coming back for their help in the future.

David

Finn

Works great for me.

Jeff

McGuffin

Everything worked out perfect, instruction very accurate

Cruz

Tovar

5 stars Fast shipping, quick response to my email, excellent products. Tune loaded quickly with no issues and shifting is smooth with the tow tune but I'm still experimenting. I needed a exhaust that wasn't to noisy and yours a worked perfectly and no leaks from the clamps. I did remove the 4 inches from section of straight pipe to fit my long bed crew cab but that seems to be the norm so the same pipe will fit the long bed mega cab. You were a word of mouth recommendation and I'm glad I remembered the name of your company. Thank you for helping me bring my truck back to life.

Kenneth

Polley

Great product, had everything I needed. Installation went great, got it all done myself in my garage in about 6 hours. Truck runs awesome with engine and trans tunes.

Andy

Kosevich

Well let's just start this out by saying I have a 16 ram 6.7 and I ordered the ezlynk with the LION package shipping was very fast and everything was complete I deleted my rig it took a complete weekend because we had a little hiccup with the ezlynk not hooked to a technician but as soon as GDP opened the problem was completely fixed the five position switch was perfect and everything functions great the tip for the 5in exhaust is completely over the top but as a dump would look great I'm very pleased with the tunes just took my camper on a 80 mile journey and have ZERO complaints now the truck is a beast I highly suggest you go with DIESEL LION for the simple fact that it was very easy to install and use ...... on a side not I do also recommend headstuds!!!! Definitely worth it THANK YOU DIESELLION.COM for everything I will be sending business your way with all my friends

Casey

S

Yall did great! Fast service and overall great experience!

Travis

Puryear

finally got it done. amazing power difference and I think the fuel economy will be better when I get through playing with it.

Clayton

Keenan

Very nice, everything was on time and how it supposed to be thanks guys

Valentin

Robl

I wood give them 5 Stars on my order. I'am very please with my exhaust system. Thanks

Robert

Brum

Excellent service and parts... Fast shipping!

Jonathan

Coo

5 Stars!

Daniel

Johnson

Had my tunes and auto agent for about a month now. Super happy with results and wow was the my tuner delivered FAST, practically next day thru FedEx.

Jorge

Torres

Your service was awesome, I was amazed how fast my order was shipped and the customer representative was very helpful. Thanks again, Steve in Colorado

Steven

Allard

Received everything very quickly!

Greg

Rinkes

Great!

Don

Peters

Thank you this worked it was file E! Tunes are great

Nick

Coley

Everything I needed was in the kit I was very happy with Everything except the shift on the fly selector. I spent 2 hours installing it in a very inconspicuous location. After I installed it we could not get the proper voltage reading for it to work correctly with my truck. So now I have it still mounted in my truck but I had to unhook it so it was a $150 item that I won't be able to use. But everything else worked very well and I am pleased with the outcome of the installation. Thank you for your products. Will be purchasing more form your company in the future

Bobby

Holt

Great job as always! Fit perfect and fast shipping! Thanks!

Chris

Taunton

You guys are lifesavers , everything thing went together perfectly, runs and shifts better than ever and it was delivered the same day I ordered it. You gained a loyal customer and I appreciate the entire process, thanks again

James

Crimm

If I could give you guys a 10-star review I would I've also reached out to a lot of my friends that also drive diesels and forwarding your guys's information to them so that they can purchase the delete kits also a couple of my friends have fleets of trucks so they will be in contact I appreciate you guys thanks for being awesome

Ian

Lewis

Absolutely amazing customer service and shipping. Have told several people to do business with you. Couldn't be happier. 5 stars all the way

Philip

Triplett

Awesome! Install wasn't too bad on 2017 Ecodiesel Ram 1500. Truck is much more responsive and should last longer now that I am no longer spewing carbon into my intake manifold.

Daniel

Johnson

I'm really happy with the Ecodiesel delete kit, which comes with an ECM and transmission tune.,My first impressions are really positive.,I installed this kit last weekend and the results have been outstanding in terms of power and fuel efficiency.,My 2016 3.0L Ecodiesel was in bad shape, stuck in 'limp mode' due to an electronic throttle fault and a DPF that was completely full.,The dealer wanted to charge me over $3,000 to replace the DPF filter, but I decided to do the installation myself.,While it was a tough process, it was definitely worth the effort.,After completing the hardware installation, I cleared the engine codes and downloaded the ECM/transmission tunes.,I went for the 40hp tune, and I can really feel the difference - there's better throttle response and a 2mpg improvement on rural roads so far.,We'll have to wait and see about the long-term durability, but I'll definitely update if I run into any issues.,Overall, I'm really pleased with the product, the instructions, and the customer support.

Don

B

Could have been better on shipping notifications on tracking numbers. I had to keep on the situation of my order by constantly emailing for tracking#'s but I finally got my products and I am very happy with the end result.

Chris

Click

I am wicked happy with the kit I received. I was proud that I was able to do the installation.

Clifford

Camp

Everything works great and the whole process was much more simple than I expected. I will definitely be recommending you to others. Thank you!

Brent

Kramer

I love all my products and my truck runs great

George

House

So far so good

Jeff

Jordan

Everything worked perfect, on time, and you even answered an email overnight!!! You got my 5 Stars guys!!! 👍 Thanks for a great product!

Jeff

Delk

I received my order quickly and it was very easily installed. I was given the wrong tunes for my vehicle but it was resolved in less than 24 hours!

Brett

Nichols

THIS WORKED AS IT SHOULD-NO PROBLEM INSTALLING -THANKS

Mark

Camarra

Great customer support!

Javier

Hernandez

So far it has done great!!!! Not hard to install

Darin

Ladlie

Yes very happy with all your service. Thanks

Wayne

Hucke

I am very pleased with everything purchased from here. All went smooth with no installation issues. Thank you for making my truck awesome!

Gary

Morrison

Exactly what I needed and wanted.

David

Murphy

Works great thanks

Tyler

Birtciel

I am stoked! Thank you ALL for being a part of the solution. It burns me up to know the amount of great engines out there being ruined by the ridiculous laws and science being forced on great Diesel engines. No doubt about it, there are less than a handful of un-needed factories blowing more pollution into the world than ALL of the diesel engines combined. Thank you again for all you do! God speed.

Mike

Thompson

You guys are great! ")

Betty

Sutherland

Happy

Karl

Patay

Great everything worked perfectly!

Dave

Skibinski

Works great nice setup

Cristian

Larios

Everything worked out perfectly. Super happy.

Rian

Mckinnon

Great kit, very satisfied with the quality and performance and your customer support is fantastic, thanks for making the 6.7 run and sound great

Tim

Hans

Kit was great so far 5" was very tight at the down pipe had to bend it on frame side. And had to weld up the clamps that hold exhaust together they were a little chincy other than that no complaints at all.

Jeramie

Speck

Easy to install, great service, the mini max is working great. Thank you!

Pascal Pepin

Thank you all for help and support everything is on truck is running fine and upgraded to the hot and cold intake fuel mileage is so much better went from 9.7 pulling my skid loader to 14.8

Jerry

Polston

5 star best of the best

Tryhard

Five stars, very responsive!

Nelson

Merced

Very pleased with it, customer service was great with any questions, only issues I had was that electrical connector plugs were not available along with a better option for switch that would of had a direct connector without splicing. Thanks

Rich

Harris

The products that I bought from your company are outstanding and your customer service is second to none thank you for all of your help. I will recommend your company to everyone. THANK YOU VERY MUCH YOU GUYS ARE AWESOME

James

Milburn

Great company to deal with will definitely use them again

mkhot

shottra

Very happy with my purchase great products thank you and I loved how fast it arrived thanks again

Peter

Rodriguez

It was great so far so good 👍

Robert

Stuart

Works great thank you so much 5 stars

Jamie

Moore

Awesome fast shipping

Mike

Bumpus

Thanks guys, everything worked out great. My order came in on time and any questions I had, you guys we're able to answer me via email ASAP. I will definitely recommend you. Thanks again

Tristan

Wright

Hats off to diesel lion. I purchased my 6.7 ford tuner approximately three weeks ago I received my tuner within three days of ordering, which was fantastic. Wasn’t expecting it for a week to a week and a half. when I received it, I opened up the box to see what came with it and noticed the gauge wasn’t in the box was planning to put it on the upcoming weekend was very disappointed at the time. I thought I was gonna have a heck of a time trying to get a hold of them and resolve the issue I first called them no answer then email them got an answer with an hour after hours. I sent them photos of what I received in the box and the person that have been talking to said he would send me one out, I thought well it’ll be another week or two before I received it. I got it within two days again very very happy with their response and concern they sent me a whole new unit very appreciative to diesel lion the way they handled it very very happy with them. Long story short if you need to order tuners or anything and need good service order from diesel lion they will take care of you. Thank you again diesel lion. If there’s anything else I need I will definitely order through them. Thanks again Cardel Howell.

Cardel Howell

Howell

You did a great job 🤙

Oliver

Large

Thank you, you guys were great to work with and my order came 2 days before I thought it was.. I will definitely use you guys again thanks again

Ted

Perry