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EFI Live Autocal V3 for GM/Chevy Duramax 2001-2016 | Delete Tuner

The Diesel Dudes is a family owned business in Montreal, Canada. Our mission is to serve diesel truck owners with high quality parts and software, while providing excellent customer service along the way. 

If you have any questions about our products, or if you are wondering what kit is best for your truck, please reach out. 

Since our inception, our entire goal was to answer any and all questions our customers have. 

We get it, tuning can be complicated, and getting it wrong can damage your truck. That's why we went out of our way to find only the best tuning options for each and every truck model and year, and when we couldn't find a good enough option, we made our own. 

That's right, while we are the authorized dealer for many tuning companies, such as GDP and Proven Diesel, our technicians make many of our tunes in house. 

So either way, we have in house technical support on all of our products, in case you get stuck on the installation. But our installation guides and videos should be more than enough to get you going. 

Just remember, if you ever have questions, just call us at 888-830-2588 and our team will help you out!

You can also follow us on Facebook!
Regular price $899.00
Regular price Sale price $899.00

The Full Delete Bundle includes everything you need to remove your entire emissions system. Your emissions codes will be gone. Your truck will last longer and get better fuel economy. Included is a tuner with preloaded delete tunes, transmission tuning, a DSP5 switch for shifting on the fly and all required cables.

Model Year


When you install the delete tune, your truck will no longer have emission related codes or warnings. 

This includes all

1) “See Dealer” codes

2) Check engine codes

3) “Exhaust system service required” codes

4) Limp Mode codes

5) Other emissions related diagnostic codes


By deleting the factory emission system which has been suffocating your diesel, you’ll immediately notice a night and day difference. It will perform better in every imaginable way, including speed, fuel economy (5 mpg increase on average), and fewer trips to the autobody shop.

Over time, the kits pays for itself with the fuel savings alone. That’s not even considering how many costly trips to the dealer you’ll be saving yourself.

The last benefit is peace of mind, knowing your truck no longer has a ticking time bomb attached to it.


The EFI Live delete tuner will permanently upgrade your truck to work without the suffocating factory emissions system.

This means you can remove ALL emissions-related parts and sensors for good, including the:

- DPF (Diesel Particulate Filter)

- DEF tank (Diesel Exhaust fluid)

- EGR System (Exhaust Gas Recirculation)

- CAT (Catalytic Converters, including DOC and NOX, etc.)

This is made possible by our custom delete tunes that wipe away the emissions system from your truck’s computer.

All you have to do is: 

Plug the tuner into your truck’s OBDII port (located under the steering wheel)

Follow the tune installation instructions we sent you. (Tech support is also available).

Once the pesky emissions system is “deleted” from your truck’s programming, you can proceed to remove all of the parts that are holding your diesel back from running at its best.

You will need to install a DPF Delete Pipe after you install this tune.

(The only exception are the older Duramax models that do not have a DPF)

You can find the DPF Delete pipes and exhaust systems here

If you need a full delete bundle, that includes this tuner, delete pipe and egr delete, find it here.


1) EFI Live Autocal with all required cables and accessories

2) Preloaded Delete Tune customized to your specific truck

3) DSP5 Switch for shifting power levels on the fly

4) Transmission Tuning

5) Step by Step Delete Tune Installation Instructions (emailed to you)


2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016

GM/Chevy Sierra/Silverado 6.6L Duramax 2500, 3500, 4500, 5500



All Cab & Chassis trucks only come with a single tune file and not DPS5.

It is a +50HP tune.

A Cab & Chassis truck is one that says "Incomplete Vehicle" below the VIN on the registration sticker, typically found on the driver door.

Most Cab & Chassis trucks are the 4500 and 5500 models.

If you have a Cab & Chassis model with a single fuel tank, please contact us before purchasing as certain model years are not compatible.


The 2011-2016 LML comes with either a Electronic Transfer Case or a Manual.

The trucks that have a Manual Transfer Case are not compatible with DSP5 tunes and will only receive a single +50HP tune.

If you turn a dial or push a button to put your truck into 4x4, you have an Electronic Transfer Case and will received DSP5 tuning.

If you pull a manual lever, you have a Manual Transfer Case.


Not tech savvy? Nervous about the software or potentially frying your truck? No worries! With every purchase, we send you a step-by-step instruction guide. Further tech support is also available should any issues arise.

The good news is, our tuners also come preloaded with your delete tune, just plug it into your truck’s OBDII port and follow our instructions to install your tune. 

And yes, if you run into any technical issues, we got your back. You can contact us anytime and we’ll resolve any issues you may encounter.

If you run into issues, open a support ticket here


The tune we create for the EFI Live is a custom delete tune. After purchasing the EFI Live bundle, you will be emailed a vehicle information form. You are required to provide the following information:

1) VIN

2) Year/Make/Model

3) Transmission Type

4) Transfer Case Type

5) Tire Size

6) Any Vehicle Modifications

Once we receive this information, we need 2-3 days to process your custom tune.

We will ship it to you with the custom tune already preloaded onto the device. Just plug it into your vehicle to upload the tune.


Transmission tuning is included for the Allison 6 Speed Automatic Transmission.

This optimizes the shift points for better fuel economy and long term reliability of your transmission.


The Custom EFI Live Tune Includes multiple power levels so you can run your truck the way you want to.

The included DSP5 switch will let you change between the power levels in real time (aka: "Shift on The Fly").

Level 1: "Stock" +0HP. Ideal for daily driving, towing, and best MPG.

Level 2: +30HP. Ideal for daily driving, towing.

Level 3: +65HP. Ideal for daily driving, towing.

Level 4: +100HP. Ideal for performance applications.

Level 5: +130HP. Performance applications. Other modifications recommended.


Sometimes, your EFI Live device may show an error code. Do not panic. It is an easy fix.

Every vehicle is unique. In the event that you receive an error code, don’t worry. These issues are super easy to resolve.

All you need to do is open a support ticket here

Our tune technicians will respond to your request within 1 business day. We will email you the updated version with step by step instructions on how to download it on your EFI Live device. 


Processing & Shipping
After you place your order, please fill out the vehicle information form that is emailed to you.

We cannot do anything until you fill out this form.

Once we receive this form, we need 2-3 business days to create your tune.

After that, your tuner will ship. Total time will be about 8 business days.

Expedited shipping is available, and can reduce your ETA to 4-5 business days.

Return/Refund Policy

The EFI Live is a built to order product and not eligible for refunds and cancellations. We guarantee the tuner will work. If you received a faulty or damaged tuner we will replace it.

Customer Reviews

Based on 13 reviews
Tony Fields

As I have not had the opportunity to install these product yet, I look forward to giving you good news after I do. Thanks for your quick delivery.

melissa olsgard
Very responsive and helpful

Five ⭐️

I'm happy now.

I have a 15 model Chevy LML, had mini-max, wasn't happy with it. Removed it, put in e.f.i. live, it's a totally different sound now, throttle response is crazy!!! 5 m.p.g. increase, can shift on the fly, the e.f.i live code's are superior, at least for the L.M.L. Chevys. Don't waste your money on mini-max if you are a Chevy owner.

Trent Vonderheit

Everything worked as it should. No CEL. No problems. I changed tire sizes, and with an email to customer service I had a tune revision in a day or two. My truck rips.

Jeremy Richardson
Efi auto cal

Great guys to work with ! Very quick response with questions. Friendly and knowledgeable. Have not installed tunes yet due to other work on truck. Highly recommended.

THE DIESEL DUDES vs Other Retailers




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  • Hand Selected The Best Delete Tuners & Parts For Every Year/Make/Model

    Show You A Large Catalog Of Options And Tell You "Good Luck, Figure It Out"