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2006.5 - 2016 GM 6.6L Duramax | EFI Live

$400.00 - $700.00
Ships Within 24 Hours
Same Day:
File Delivery
Off Road Tunes:

2006.5 - 2016 GM 6.6L Duramax | EFI Live

$400.00 - $700.00

2006.5 - 2016 GM 6.6L Duramax | EFI Live

$400.00 - $700.00

CLICK HERE to view hard parts needed for off road use


**If you purchased a license ONLY for $125, you are confirming that you already have a flash device (autocal or flashcan). If you do not know what either of those are you need to select the autocal option to flash your truck.

ALL EFI Live Autocal devices come preloaded with the customers specific tune to avoid the hassle of having to download EFI live and load the tune yourself. Detailed instructions come with every tune from how to download a simple file onto your autocal, to how to load the tune onto your vehicle. If you still need assistance, dont sweat it as world Class tech support is offered on ALL our purchases! 


How to obtain EFI Live device serial number and authentication code:  (Click Here) This is only needed if you purchased a file only


2011 - 2016 LML DSP3 | DSP5 EZ-Connect Switches:

DSP3/5 Switches allows you to change power levels on the go, or commonly referred to as " switch on the fly". They do NOT require you to stop the truck and wait 5 minutes for the truck to re flash, you just turn the rotary dial to the position of the tune you want while the truck is running or driving down the road and carry on. These switches are modified and do NOT require being pinned to the ECM like a traditional LML switch does. It plugs into the EGT #1 Sensor. This Switch will NOT work with any other tuning based on the switch being modified to our specifications.

Power Levels

2011 - 2016 LML Duramax Single tune Options

A Flash First File update 0 HP
Street +120HP
Race +150HP
MAX +200HP**

LML DSP3 Power Levels

1 30hp
2 80hp
3 120hp


LML DSP5 Power Levels

1 0hp
2 30hp
3 80hp
4 120hp
5 150hp**


2006-2007 LBZ & 2007.5-2010 LMM Single tune and DSP Tunes

Tune Stock Trans HP Built Trans HP
HTOW +30HP +30HP
ECO +50HP +60HP
Street +100HP +120HP
Race +120HP +160HP**
Max +150HP** +230HP**


**Requires Lift Pump

Power level notes: 30HP will be used for heavy towing (up to the trucks capacity). 60HP - 80HP is best for MPG and can be used for light towing for anything under 10k LBS.

Transmission Tuning Features:

Earlier Converter Lockup

Increased Line Pressure

New Shift Strategy to Keep From Luggish Shifting

Earlier Downshift with Less Throttle input

Torque Management

Hard Part Control

  • EGR blocker plates and or EGR cooler removal is required to run no emissions tuning if your device was ordered with it. All other sensors, throttle valve, EGR temp sensors, and EGR valve control can remain plugged in to prevent corrosion.
  • DPF/SCR and all associated sensors can be removed from exhaust and tied up along frame rail for future use if required. Supplied tuning ECM Stock file can return vehicle to OEM configuration if later desired and these sensors will be required
  • Unplug UREA pump and heater control and if desired remove the UREA tank all together.
Tune guaranteed to work with stock configuration
Returns Policy

Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange. 15% restocking fee is applied for all returns, unless it is deemed our fault. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.

Additional non-returnable items: Gift cards Downloadable software products Some health and personal care items To complete your return, we require a receipt or proof of purchase.

Refunds (if applicable) Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund. If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Late or missing refunds (if applicable) If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund yet, please contact us at

Sale items (if applicable) Only regular priced items may be refunded, unfortunately sale items cannot be refunded.

Exchanges (if applicable) We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund. Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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