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EZ Lynk Tuner & 4" Downpipe Back with No Muffler | 2011-2015 6.6L GM Duramax LML

Available with custom tunes from GDP Tuning, Anarchy Diesel, or PPEI


This performance package includes the EZ Lynk AutoAgent and a Flo~Pro 4" downpipe back with no muffler, no bungs for the 2011-2015 6.6L GM Duramax LML and is the first tuner to offer shift-on-the-fly tuning for the LML. The EZ Lynk tuner comes with your choice of custom tunes from either GDP Tuning, Anarchy Diesel, or PPEI.

Important Note: Now available for Apple iOS & Android!

  • Shift on the Fly Tuning
  • 5 Power Levels - up to +230HP
Pricing: $875.00

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EZ Lynk AutoAgent

GDP Tuning introduces the first tuner to offer shift on the fly tuning for 2011-2016 6.6L GM Duramax LML vehicles.

Power Levels

  • No Power: +20hp
  • Tow: +50hp
  • Street: +75hp
  • Performance: +130hp
  • Rampage: +230hp


  • First Shift-on-the-Fly tuner for the LML
  • Cloud Based Profile Management
  • Automatic Firmware Updates
  • Real Time Datalogging
  • Customizable User Interface
  • Lightweight iOS or Android App

Live Data
Check and clear diagnostic trouble codes. Playback last 30 minutes of data.
Service Access
Your technician can login to our cloud server and connect to your vehicle almost as if they were riding with you.
Smartphone App
You can use your smartphone to quickly view live data as it streams from your automobile.

EZ Lynk App
Easily control what repair facility your vehicle’s data is shared with. Simply choose what vehicle information is displayed on customizable dashboards.

Conveniently display information not available on your factory instrument panel.

The AutoAgent connects to the vehicle via the OBDII port and broadcasts a wifi access point (AP) which allows a wireless connection to the vehicle using any iOS device (Android support coming soon). By launching the free EZ LYNK application on an iOS device, engine data is seamlessly streamed to the phone or other smart device. The AutoAgent also has the capability to reflash vehicle system controllers with ECU profiles shared by technicians.

Endusers can conveniently share datalogs and other vehicle information to any technician with the touch of a finger without even leaving the driver seat. Datalogs can be quickly started and stopped from the main gauge display screen and bookmarks can be added to draw interest to specific points of a datalog if desired. A graphical webbased datalog viewing solution will soon be incorporated into the EZ LYNK Cloud as well. A fully customizable user interface allows the enduser to create a gauge interface that suits their particular needs. Technicians can also create default PID configurations that are automatically loaded during a reflash procedure to further assist in the troubleshooting and diagnostic process.

Feel free to check out the view below along with downloading the App to become familiar with the user interface.

Once you have downloaded the AutoAgent iOS App and created an account please feel free to navigate around the AutoAgent App. To watch a tutorial of the AutoAgent interface click the menu icon in the top left>Settings>View tutorial. There are 6 steps that you can swipe through to check out what EZ LYNK has put together for there soon to be available AutoAgent!

Flo~Pro 4" Downpipe Back with No Muffler, No Bungs | 864NM

  • Fits 2011-2015 6.6L 2500/3500 LML EC-CC/SB-LB-Dually
  • No Muffler, No Bungs
  • 100% Aluminized Kit
  • Deletes Diesel Particulate Filter
  • Eliminates Pyrometers & Air Lines
  • Increases Horsepower
  • Increases Torque
  • Increases Fuel Efficiency
  • 100% Satisfaction Guaranteed
  • Bolt-On kit w/ All Necessary Pieces

WARNING! These products are capable of disabling emissions equipment. If using DPF/EGR removed tuning, these high performance products are intended SOLELY for offroad use or closed-course racing use.

Shipping Information

  • Item Requires Shipping
  • 17.0 lbs.
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