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

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Instructions
No installation manuals available for this product at this time. Request a manual here.
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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. MPV13 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 TO THIS ADDRESS TO BE UNLOCKED:

HP Tuners (ATT: GM E66 ECM Service [Global B])
700 Eastwood Ln
Buffalo Grove, IL



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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Happy

Karl

Patay

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 so far seems to be exactly what yall described thank you

Marty

Waggo

Very happy with everything 5 stars

Kelly

Hatfield

Everything was great my order was exactly what I wanted no hassle no problem. Would definitely order again from Y'all again.

David

Woodc

Everything worked out perfect, instruction very accurate

Cruz

Tovar

Packages arrived and in good shape. When I had any questions someone would follow up with an answer. My RaceMe Ultra was easy to install and had no problem with the EGR delete kit. I did have a problem with my pipes due to the bend in the pipe that replaces the muffler. Only 2 ways I could put it. The bend up or down would not let me hook up my hanger mounts for support.

Geoffrey

Rose

Exhaust came in on Tuesday. Well packaged and perfect box. Got the truck completely done today. Slow day at the shop so I got it all done. I want expecting that much power honestly. What a difference. Already 3.5mpg better. Truck is a monster now. Shocked really. Sounds sick too!!!! Thank you guys for the product, communication. Perfect. It's like a new truck.

Harrison

Lansdale

Everything went well. Thank you very much

Tom

Honrath

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

You guys are great! ")

Betty

Sutherland

Thanks y'all Done great

John

Rodge

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

Sun

Man

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

Everything in the kit ordered worked great! I am a happy customer and will likely purchase again!! Thanks for the great products. Thank you for your time.

Tony

Russ

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

Brian

J

Great company to deal with will definitely use them again

mkhot

shottra

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

10/10. I had a little mishap with the EGR kit getting shipped but after a late-night email, that was responded to extremely quickly. Customer service top notch. Install quickly and easily. It is a great product and a great company.

Bob

Mcgee

Everything I have ordered so far has installed and functioned without fail. Shipping has been prompt. Customer service has been knowledgeable. I would recommend these products.

Joe

Murphy

Great everything worked perfectly!

Dave

Skibinski

Truck runs like a scalded dog! Had issue with muffler not being sent with original order and had to switch to EZ link tuner. Other than than N that, very pleased

Carlos

Martinez

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

It was easy and it makes the truck run better

Chris

Lagorga

So I had a special case. I needed a tune for a 2008 C5500 Duramax. This is obviously a commercial truck. They were able to send me the handheld. My mechanic downloaded the parameters from the truck. He sent them off. I had a custom tune back in 2 days. The truck now runs great. Thanks to Dyno Diesels for a custom tune. When our government is doing everything they can to ruin diesels. Dyno has your back.

Roman

Parsons

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

Exactly what I needed and wanted.

David

Murphy

Exactly as described. I love it my miles per gallon on the highway or approximately 25 miles per gallon now at 78 miles an hour on cruise on level ground. Very happy. Not to mention all the extra horses

Jerry

MCcool

19% Better MPG. Sounds like a REAL diesel. Great communication.

Will

S

The truck is running pretty good now thanks to your tunes and email help. I ran the 60hp tune for a few days then loaded the 100hp. Ran a tranny learn session out on the interstate immediately after the flash. Truck runs better on the 100hp than the 60hp tune in my opinion. No rolling coal, just a little "coal dust" when accelerating. The mileage is fantastic compared to what it was getting before the turbo replacement and tuning. It was 13-14 mpg before the swap. Now running the 100hp tune, I'm getting 21-22mpg. Unbelievable! On a fresh refuel, I reset the mpg display on the truck. The first 125 miles saw 22.5 mpg! After five days of mixed driving, it was still holding 21.8 mpg. Now, the big question is: How accurate or valid is the PCM calculation and display? Who care? Before it was reading 13-14 m mpg. Now it's showing 21.8 mpg. That makes me happy and that a good thing. I will run a manual calculation when I refuel again in a few days to cross check. Thanks again for your help and patience.

Ken

Kilby

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

Worked great! The kit had everything I needed to fix the issue.

Tommy

Johnson

Just finished my tuner and I love it. I I appreciate the quick shipping and great customer service u provided. Everything fit perfectly and was easy to do. I give ya 5 stars no doubt!

Anthony Jackson

Jackson

Everything came in and seems to work just fine. Thanks

Greg

Rinkes

Very pleased with everything I got everything went pretty smoothly and is working great! Thank you guys! Would definitely shop again or suggest to others. Only complaint is on the 5-in downpipe it is a rather tight fit and kind of touches the frame there maybe a slight Factory dent or something

Jude

Gray

Awesome parts and shipping

Dan

Tompkins

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

Eliazar

I just finished installing the RaceME Ultra and complete EGR, exhaust system kit. This woke my truck up like never before and it runs great. Technical support was a great help and Michael answered all my questions in a timely manner. Looking forward to many miles with no check engine lights. Thanks again for all your help.

Doug

Miller

Yes very happy with all your service. Thanks

Wayne

Hucke

5 star best of the best

Tryhard

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

Anonymous

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

Excellent service and parts... Fast shipping!

Jonathan

Coo

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

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

Michael

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

Brock

M

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

Charlie

Clonch

Works great thanks

Tyler

Birtciel

Very helpt and really like the quick reply's to any question I had Thanks

Steve

Jones

I am extremely happy with my product I ordered. Easy installation and everything was well packaged.

Ray

Moyer

Yall did great! Fast service and overall great experience!

Travis

Puryear

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

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

I am very pleased with my purchase!! The only thing I wish I would have got was the pyro that goes with it. I'm saving now so I can purchase that in the near future. Thank you so much!

Mark

Lujan

Truck runs great now. Thank you.

James

Vournas

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

Great products and lots of good assistance with the purchase!!! Thanks!!!

Ray

Chaple

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

Great!!!

Doug

Candler

Very happy with the kit, everything fits and performs well.

Joe

Murphy

You did a great job 🤙

Oliver

Large

Awesome Great job 👏

Jeff

Cooper

Works great thank you so much 5 stars

Jamie

Moore

So far exactly what I want to achieve, smooth, no surging, trans is solid. The delay between the 3rd and 4th is a bit long. I was hoping for an earlier shift.

Mike

G

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

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

Neil

Mayes

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

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

Great!

Don

Peters

You did very well thank you so much.

Terry

Conk

Fast shipping and good fitment

Mitchell

White

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

Mary

Clark

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

Pascal Pepin

Worked great, will use again if needed!!

Dale

Cagley

yes working good so far

Steve

Noriega

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

Instructions would be awesome. But overall very happy with products performance

Kyle

Roose

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

Everything went good on the install

BJ

Putman

Very happy

Charlie

Wade

Hi there and sorry it took me a long time to get back to y'all. I f**king love the way my truck runs and sounds now . Thank

Jay

Thompson

Hey guys just a shout to you all! Thanks for supplying us with another great kit. Everything went together perfectly and the tuning is awesome! Thank you for another great experience!

Brandyn

Reinf

Good service prompt delivery!

R

Bersano

You nailed it, great products and a great price!

Jeremy

White

Everything was handeld very well and all the stuffed worked no problem

Chris

Shires

You guys are the best, thank you.

Mike

E

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

Thanks for selling these kits! My truck runs like a champ. It was super easy to update the SCT and flash the ECU. I was a little worried but there was good instructions!

Angel

Proven

The product worked perfectly, solved all my problems. Thank you.

Michael

Gilbert

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

Nick

Coley

Small issue with shipping on time but 5 stars

Richard

Parks

THANK YOU!

Shane

Everything worked out perfectly. Super happy.

Rian

Mckinnon

My order was shipped right out and I received it quickly. I am very pleased with your service and product. 5 stars!

Chris

Paul

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

EFI Live easy to work with! fast shipping! Thank you

CHRIS

SWAIN

Works great for me.

Jeff

McGuffin

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