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

Product Compatibility

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Checkout
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

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

Peter

Rodriguez

Everything worked out perfectly. Super happy.

Rian

Mckinnon

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 fast shipping

Mike

Bumpus

Wow what a difference should have installed a raceme ultra years ago. Truck runs great

Paul

Erickson

Excellent!!!!! Everything worked out perfect

Mitchel

Johnson

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

Jeff

Wooton

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

CHRIS

SWAIN

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

Great product will be ordering more very soon!

Jaron

Hastings

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

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

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

Neil

Mayes

Yes very happy with all your service. Thanks

Wayne

Hucke

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

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

Perfect I love it

Jose Ramos

Cortez Lopez

Great kit. Truck runs great. I went from 16.2 highway mpg to 19.9 highway mpg. The kit did not substantially increase exhaust noise, the truck is still quiet for a diesel. I am very pleased. I can now go down to grand isle fishing and not have to worry about my truck saying in 50miles your truck will only go 50 mpg. What a relief!

Steven

Unkel

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

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

Michael

Gilbert

It is amazing! Truck runs like a dream!

Luis

Morato

Product was great. Easy installation. Great improvement over stock.

Ron

Pontius

You guys are the best, thank you.

Mike

E

Thanks y'all Done great

John

Rodge

You did a great job 🤙

Oliver

Large

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

The best product and excellent customer service!

Jeff

Boudreau

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

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

Kyle

Roose

Installation for exhaust was pretty straightforward. Internet connection is slow where I live, so download of the tune was pretty time consuming. Also had to take off my dashboard to access unlock location for ECU. On the upside, easily added 3mpg - sometimes a little better when taking it easy. Amazing to get almost 30mpg (sometimes low 30's) out of a 1/2 ton pickup truck.

Jeffrey

Burns

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

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

Valentin

Robl

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

Michael

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 customer support!

Javier

Hernandez

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

Ray

Chaple

good tunner worked the way they said.

Bat

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

Yes I was very happy.

Lewis

Drywall

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

Great product and super nice customer service

David

Hancock

yes working good so far

Steve

Noriega

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

thanks again the truck runs great went from 27 to 32 mpg

Darwin

Grewe

Yall did great! Fast service and overall great experience!

Travis

Puryear

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

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

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

Eddie

B

Great everything worked perfectly!

Dave

Skibinski

Great!

Don

Peters

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

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

Everything came in and seems to work just fine. Thanks

Greg

Rinkes

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

Nick

Coley

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

Nestor

Bueno

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

Good service prompt delivery!

R

Bersano

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

Pascal Pepin

5 star best of the best

Tryhard

Awesome Great job 👏

Jeff

Cooper

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

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

Works as it should. Quick shipping

Chris

Quacken

Five stars, very responsive!

Nelson

Merced

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

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

Yes really good love it

Juan

Bravo

Works awesome. Thanks I appreciate you.

Don

Allison

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

Everything fit and is working very well. Order was delivered faster than expected. Would recommend this kit to others.

Marland

King

You did very well thank you so much.

Terry

Conk

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

Clifford

Camp

Great!!!

Doug

Candler

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

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

Anonymous

THIS WORKED AS IT SHOULD-NO PROBLEM INSTALLING -THANKS

Mark

Camarra

Everything worked out perfect, instruction very accurate

Cruz

Tovar

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

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

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

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

Brian

J

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

You nailed it, great products and a great price!

Jeremy

White

So far so good

Jeff

Jordan

I love all my products and my truck runs great

George

House

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

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

Worked great

Kenzie

Trucking

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

Great service. Fast shipping. Great product. Will do business with you guys again!! A++

Joe

Caddick

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

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

%100 great service awesome timing on parts!

Jesse

Ward

You guys did awesome!!!

Whitney

Schiesser

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

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

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

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

Yes 😊

Darrell

McKittri