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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Exactly what I needed and wanted.

David

Murphy

Very satisfied with the results of the Tow Haul tune, good service and fast shipping. I do however like talking to someone on the phone more than communication thru email. (I'm just a little old school I guess)

Mike

Moyers

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

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

Tommy

Johnson

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

Ray

Chaple

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

Valentin

Robl

Truck runs great thank yall

Fabian

Benavi

Truck is back to running like it should thanks

Johnny

Quarles

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

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

Yes very happy with all your service. Thanks

Wayne

Hucke

Everything came in and seems to work just fine. Thanks

Greg

Rinkes

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

Robert

Brum

It was great so far so good 👍

Robert

Stuart

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

yes working good so far

Steve

Noriega

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

I'm waiting on the rest of the stuff but the employee or employees I've been dealing with have been super kind and helpful. Thanks

Tom

Fern

Everything went well. Took me 4 hours to complete, solo. Only gripe I could have (which I don't) would be the lack of instructions for the bracket that bolts to the exhaust. Took me a while to figure that out as the instructions showed a different set up. Preciate the kit. Have recommended to other folks.

Cordy

DD

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

Chris

Shires

Great product will be ordering more very soon!

Jaron

Hastings

Great customer support!

Javier

Hernandez

Worked great, will use again if needed!!

Dale

Cagley

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

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

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

Works great thank you so much 5 stars

Jamie

Moore

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

Will

S

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

Incredibly happy runs way better mileage increased and muffler with 4" exhaust is perfect. Thanks again

Anthony

Guilian

5 star best of the best

Tryhard

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

Great! Thanks!

Goat

Snob

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

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

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

David

Woodc

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

The best customer service in the business!!!!

Brock

Maxwell

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

Product was not really compatible with the C/C as turbo is smaller so GDP will only give me 1 tune. I understand why but, I bought the 5 position switch was so I could adjust power as at times I do not tow and others 30k lbs. Other than that like the tune and GDP tech line was very, very helpful So can't use the 5 position switch but will keep until I install a larger turbo as per GDP. Thanks for the product and it really sounds like a truck now.

Bill

King

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

Five stars, very responsive!

Nelson

Merced

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 like it, the install wasn't too bad. Wish it would've came with instructions, that would make it a lot better.

Marcus

Moore

You guys were great. We had a couple of questions, they were answered. Kit was super nice. Tunes were well tuned. Good company to deal with. We will be ordering our deletes from here.

Austin

Euro

Very happy with my order. Could have used some instructions on the install. Thanks Youtube. Also don't really understand the trans tune. Didn't get any verification it was installed on the tuner or even how it is installed. Don't even know if I really have it.

Tracy

Funderb

The kit works great. The DPF and DEF deletion pipes fit perfectly. The EGR Kit had everything I needed and the RaceME Ultra was easy to install. The way the truck runs now is awesome, The horsepower and fuel mileage was exactly what I was looking for. The fuel mileage on my 2017 Dodge with the 6.7 cummins with from 15-16 MPG to 24-26 MPG on the highway and from 11-12 to 18-19 in town. I'm extremely happy with my purchase. Thank you.

Dave

Peevey

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

Ordering process was great and everything arrived quickly and intact. The GDP tunes seem decent although there is some smoke on level 1 where I wouldn't think there would be any. Overall very satisfied with the product.

C

Gilliam

It was easy and it makes the truck run better

Chris

Lagorga

Good service prompt delivery!

R

Bersano

You guys are great! ")

Betty

Sutherland

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

Steve

Jones

The kit was fantastic. My stage 2 tow tune is a good tune.

Jeff

Wooton

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

Chris

Taunton

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

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

Yes very happy with both my orders

Nicholas

Estes

Yes really good love it

Juan

Bravo

%100 great service awesome timing on parts!

Jesse

Ward

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

Excellent service and parts... Fast shipping!

Jonathan

Coo

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

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

Hey, it all went well the freezer did the trick (on mm3), it all went back to stock and then everything loaded on. It's awesome, I am very happy truck runs like a dream transmission is buttery soft. Very impressed. Thanks for all your help and good service ií will definitely recommend you to my friends. Thank you again

Paul Morgan

Lawrence

Great feedback with issues with software. Very responsive and helpful. Great customer service for products.

Willimam

Alexander

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

Worked great

Kenzie

Trucking

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

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

Michael

Gilbert

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

Sun

Man

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

Michael

Thanks for the promoptly sending my order. Everything fit great. I'm totally satisfied!! Thanks again!

Darrell

Blackw

Happy

Karl

Patay

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

Anonymous

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

Yes 😊

Darrell

McKittri

Awesome parts and shipping

Dan

Tompkins

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

Nick

Coley

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

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

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

THANK YOU!

Shane

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

Greg

Borgman

Everything went well. Thank you very much

Tom

Honrath

I'm very impressed by the sound and power it makes when I get on the throttle(WOW😁)

Eddie

B

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

Everything went good on the install

BJ

Putman

Yall did great! Fast service and overall great experience!

Travis

Puryear

Great product and super nice customer service

David

Hancock

Truck runs great now. Thank you.

James

Vournas

You guys did awesome!!!

Whitney

Schiesser

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

Kyle

Roose

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

Great!!!

Doug

Candler

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

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 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

I love all my products and my truck runs great

George

House

Initially hesitant about deleting, I found that it turned out to be the best thing I could have done. As a result, I no longer experience exhaust service lights, and there is no lagging when I step on the accelerator. Additionally, I have noticed an increase in fuel mileage.

Adam

B