• Buy With Confidence
  • We're the ExpertsAsk us anything
  • Free Ground Shipping On U.S. orders over $99
  • Price Match Guarantee We match all advertised prices
  • Fast & Easy Shipping No Hassle Returns made easy
Click on image to zoom

GDP Tuning EFILive Autocal and 4" Downpipe Back No Muffler, No Bungs | 2011-2015 6.6L GM Duramax LML 

R1116DGP-864NM

This performance package include GDP Tuning's EFILive Autocal & Flo~Pro 4" downpipe back with no muffler, no bungs for 2011-2015 6.6L Duramax LML applications.

  • 5 power levels up to +230HP
  • Important Note: Tuner is non-returnable due to being vehicle specific
  • Important Note: Fits 2011-2015 6.6L 2500/3500 LML EC-CC/SB-LB-Dually
Pricing: $1,274.99

Customize Your Item

- -
 * required
- -
 * required
- -
 * required
 * required
 * required
*
Qty:

Description

GDP Tuning EFILive AutoCal | 2011-2016 6.6L GM Duramax LML | R1116DGP

How it Works

Because this tuning is custom made for your specific needs and modifications, the Gorilla EFILive AutoCal will not come pre-loaded. Each unit ships with easy-to-follow instructions that include a login, password and unique order number to use on the Gorilla website. You will be directed to an online portal where you will be asked for information about your truck. This information includes VIN number, modifications and more. Once these fields are filled out and the form is submitted, the experts at Gorilla will build tuning specifically for your truck.

Within 48 hours (business days) you will receive the tunes via email. From there you can load the tunes onto the AutoCal and then into your truck. Each tuner ships with unique information. For this reason, the above process cannot be completed until you physically have the Gorilla AutoCal.


2011-2016 GM 6.6L Duramax tuning comes as 5 separate files. To change power levels you must re-program your vehicle with the AutoCal.

Power Levels

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

RAMPAGE requires a lift pump in order to see the full 230HP increase.


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! THIS PRODUCT IS FOR COMPETITION USE ONLY. ALL OTHER USES ARE CONTRARY TO FEDERAL LAW. IF YOU INTEND THIS PRODUCT FOR HIGHWAY OR NON-COMPETITION OFF-ROAD PURPOSES DO NOT PURCHASE OR INSTALL THIS PRODUCT. READ FULL OFF-ROAD WAIVER.

Details

Shipping Information

  • Item Requires Shipping
  • 33.0 lbs.
  • W9.0000” x H7.0000” x L5.0000”