SPRING SALE! | OBDii FLASH TUNER DELETE Kit | 2017-2023 CHEVY / GMC L5P DURAMAX

2017-2023 CHEVY / GMC DURAMAX L5P / L5D 6.6L

Upgrade Packs
Add To CartBuy Now
Free Shipping on all Ground Orders!
Thank you! Your order has been received!
Oops! Something went wrong. Please try again.
Shipping

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

We understand the importance of clarity in our return procedures, both for our customers' peace of mind and for ensuring a smooth process. We've outlined our updated guidelines to facilitate efficient returns here.

On Sale!
Recommended Add-ons

Complete your kit with these upgrades!

No items found.
Choose Your Upgrades
Buy Now
USD2,599.99

Product Information

Product Description

2017-2023 CHEVY / GMC L5P AND L5D DURAMAX 6.6L PICKUP AND CAB CHASSIS 2500, 3500, 4500, 5500.

 

STAGE 1 | THE CUB | BEGINNER FULL DELETE KIT

We call this THE CUB because it deletes all 3 basic things you need deleted: DPF, DEF, EGR & CAT. This is all that is needed to get your truck fully deleted without any of the frills or add-ons. If you want something more advanced and/or performance oriented look at STAGE 2 or STAGE 3 below. 

STAGE 1 Includes:

  1. HP TUNER OBDii Flash Delete Tuning Interface
  2. GDP Single delete tune of your choice.
  3. CAN BUS Plug Kit
  4. 8 CREDITS (Required and included)
  5. DD E41 ECM Upgrade Kit (Unlock your ECM right in your truck)
  6. T409 stainless steel DPF delete pipes. 

    IF YOU WANT TO ADD A DOWNPIPE CLICK HERE.
    IF YOU WANT TO ADD A EGR DELETE KIT CLICK HERE.
    IF YOU WANT TO ADD AN INTAKE CLICK HERE
    IF YOU WANT TRANNY TUNING ADD IT VIA THE MENU BUTTONS.

    STAGE 2 | THE YOUNG LION | VALUE DELETE KIT

    We call this The YOUNG LION. While scary enough to get the job done, it won't quite scare your local Liberal the same way as when you step on it with our KING OF THE JUNGLE kit. This is where value meets affordability. This Complete DPF/DEF/EGR Delete kit is for those that want the best of both worlds, Power & Reliability. 

    STAGE 2 Includes:

    1. HP TUNER OBDii Flash Delete Tuning Interface
    2. GDP Multi tune or SOTF tune package. (Shift on the fly via steering wheel buttons)
    3. CAN BUS Plug Kit 
    4. 8 CREDITS (Required and included)
    5. E41 ECM Upgrade Kit (Unlock your ECM right in your truck)
    6. EGR Delete Kit.
    7. 4 inch complete exhaust. (T409 stainless steel)
    8. Black/Chrome T304 stainless steel exhaust tip.
    9. T304 stainless steel Downpipe. (Delete the CAT in factory downpipe)

    IF YOU WANT TO ADD AN INTAKE CLICK HERE
    IF YOU WANT TRANNY TUNING ADD IT VIA THE MENU BUTTONS.

    STAGE 3 | THE KING OF THE JUNGLE | ULTIMATE DELETE KIT

    We call this the THE KING OF THE JUNGLE! This DPF, DEF & EGR Delete kit includes everything needed to turn your Diesel Truck into the Ultimate Diesel Powered Animal. Your Tesla driving neighbor just might start taking Testosterone Supplements once you pull up in THE KING OF THE JUNGLE!

    STAGE 3 Includes:

    1. HP TUNER OBDii Flash Delete Tuning Interface
    2. GDP Multi tune or SOTF tune package. (Shift on the fly via steering wheel buttons)
    3. CAN BUS Plug Kit
    4. 8 CREDITS (Required and included)
    5. DD E41 ECM Upgrade Kit (Unlock your ECM right in your truck)
    6. EGR Delete Kit.
    7. 5 inch t409 stainless steel exhaust.
    8. Muffler. (Leave comments if you want to skip on the muffler)
    9. Chrome/black exhaust tip. 
    10. T304 stainless steel Downpipe. (Delete the CAT in factory downpipe)
    11. S&B Cold air intake. 

    IF YOU WANT TRANNY TUNING ADD IT VIA THE MENU BUTTONS.

    *This is a custom tuning kit with Custom tunes and cannot be returned.

    **In order to get GDP tunes you must fill out the tune order form. This takes 3 to 5 business days to get the tunes. You will login (with the supplied login info that will be emailed to you once you submit the form) and download the tunes at tuning.tech

        Powerlevel Options

        AVAILABLE HP LEVELS

        LEVEL 1 = 0HP (STOCK & HEAVY TOW)

        LEVEL 2 = 50HP (LIGHT TOW)

        LEVEL 3 = 80HP (LIGHT TOW & PERFORMANCE)

        LEVEL 4 = 120HP (STREET & PERFORMANCE)

        LEVEL 5 = 190HP+ (RACE)

        TUNE INFO

        HEAVY TOW

        -No added RWHP, + 100 ft-lbs torque over factory.

        -This tune is for those towing from 8,000 lbs up to max GVWR. (Gross Vehicle Weight Rating)

        -Wider torque curve assists heavy loads

        -Perfect tune for maximum longevity and reliability.

        -Exhaust temperatures drop up to 100F under full load

        LIGHT TOW

        -For those towing any load up to 8,000 lbs.

        + 50 RWHP, + 200 ft-lbs torque over factory

        -Designed for weekend tower, boats, small tractors, etc

        -Perfect balance of sport driving & functionality

        -Unhook and enjoy a sportier drive

        ECONOMY/SPORT

        -Fun “unloaded” daily driving

        -For driving around town, highways

        -Impress your friends

        -Put a smile on your face

        + 80 RWHP, +300 ft-lbs torque over factory

        -Puts your vehicle near the 550 RWHP mark"

        HOT STREET

        -Bridge between Sport Economy and Race

        -A little more aggressive than Sport Economy

        -Behaves nicely on the street

        + 120 RWHP, +400 ft-lbs torque over factory

        -Puts your vehicle near the 580 RWHP mark.

        -Race / Max Effort Tune

        -Maxes out the factory Turbo.

        + 180 RWHP, + 500 ft-lbs torque over factory

        -Puts your vehicle  to about 600 RWHP 1360 ft-lbs.

        -Up to 620 RWHP / 1380 ft. lbs with WC Fab turbo mouthpiece.

        TCM TUNING RECOMMENDED FOR THIS LEVEL.

        Product Compatibility

        Chevy / GMC
        Duramax
        2017-2023 L5P/L5D

        2017-2023 CHEVY / GMC DURAMAX 6.6L PICKUP AND CAB CHASSIS

        Other Information and Resources

        Satisfied Customers

        Hear what our customers have to say about our diesel parts.

        There aren't any reviews for this product yet. Be the first! Leave a review here.
        Offroad Recommendations

        Other Great Buys

        Check out some other products that you might like

        No items found.
        Product Name
        Product Note
        Selected Variants
        Subscription Title
        Product Discount (-0$)
        CODE (-0$)
        $0
        $0
        Thank you! Your submission has been received!
        Oops! Something went wrong while submitting the form.
        Your Cart Is Empty
        Success message won't be visible to user. Coupon title will be listed below if it's valid.
        Invalid code
        CODE
        Subtotal
        $0
        Order Discount
        -$0
        CODE
        -$0
        Total
        $0
        Checkout
        Thanks y'all Done great

        John

        Rodge

        Small issue with shipping on time but 5 stars

        Richard

        Parks

        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

        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 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

        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

        yes working good so far

        Steve

        Noriega

        Great customer support!

        Javier

        Hernandez

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

        Greg

        Borgman

        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

        Truck runs great now. Thank you.

        James

        Vournas

        The best customer service in the business!!!!

        Brock

        Maxwell

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

        Nick

        Coley

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

        Neil

        Mayes

        The kit was great and super easy to install. I didn't see the transmission tune.

        Ralph

        Franks

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

        Darin

        Ladlie

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

        Ray

        Chaple

        I am really like y'all customers Servies Very helpful.

        Rodrigo

        Luna

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

        Clifford

        Camp

        Excellent customer service and the process was pretty simple overall (lots of wrenching but so worth it!). We are ecstatic with the improved performance of the truck. Tuner is excellent and easy to understand!

        Dianne

        Brooks

        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

        Works as it should. Quick shipping

        Chris

        Quacken

        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

        Excellent service and parts... Fast shipping!

        Jonathan

        Coo

        Very happy

        Charlie

        Wade

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

        Michael

        Gilbert

        Great so far seems to be exactly what yall described thank you

        Marty

        Waggo

        Yes very happy with all your service. Thanks

        Wayne

        Hucke

        Very happy with everything 5 stars

        Kelly

        Hatfield

        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

        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

        Received everything very quickly!

        Greg

        Rinkes

        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

        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

        Happy

        Karl

        Patay

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

        Marland

        King

        Great product will be ordering more very soon!

        Jaron

        Hastings

        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

        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

        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

        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

        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

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

        Robert

        Brum

        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

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

        Darwin

        Grewe

        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

        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

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

        Eddie

        B

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

        Chris

        Paul

        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

        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

        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

        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

        Yes 😊

        Darrell

        McKittri

        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

        Awesome Great job 👏

        Jeff

        Cooper

        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

        Five stars, very responsive!

        Nelson

        Merced

        Works great for me.

        Jeff

        McGuffin

        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

        I really appreciate all the help. I super excited to get the products installed on my truck. You guys are awesome with the quick turn around on the products and customer service.

        Jesse

        Di Lella

        You nailed it, great products and a great price!

        Jeremy

        White

        Everything went well. Thank you very much

        Tom

        Honrath

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

        Pascal Pepin

        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

        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

        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

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

        Will

        S

        You guys did awesome!!!

        Whitney

        Schiesser

        You guys are great! ")

        Betty

        Sutherland

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

        Eliazar

        Everything worked out perfect, instruction very accurate

        Cruz

        Tovar

        5 Stars!

        Daniel

        Johnson

        Great!!!

        Doug

        Candler

        Great product and super nice customer service

        David

        Hancock

        Works great nice setup

        Cristian

        Larios

        Everything went good on the install

        BJ

        Putman

        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

        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

        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

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

        Chris

        Shires

        Great!

        Don

        Peters

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

        CHRIS

        SWAIN

        Truck is back to running like it should thanks

        Johnny

        Quarles

        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

        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

        I love all my products and my truck runs great

        George

        House

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

        Joe

        Murphy

        Worked great

        Kenzie

        Trucking

        THIS WORKED AS IT SHOULD-NO PROBLEM INSTALLING -THANKS

        Mark

        Camarra

        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

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

        David

        Woodc

        Works awesome. Thanks I appreciate you.

        Don

        Allison

        You guys are the best, thank you.

        Mike

        E

        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

        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

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

        Sun

        Man

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

        Peter

        Rodriguez

        You did a great job 🤙

        Oliver

        Large