GDP EFI Live Delete Tuner and 4" Premium Exhaust Package - Duramax 6.6L LML 2011-15 Pickups

In stock
Special Price $1,489.00 was $1,523.98

EFI Live Custom Delete Tuning for the Duramax LML

GDP EFI Live Delete Autocal:
5 Driveable Power Levels, Up to +230 HP
Allows for DPF/EGR Deleting without Trouble Codes
Simple File Download & Plug-N-Play Installation
Read & Clear Diagnostic Trouble Codes; Data-logging Tools
aFe Premium Delete Exhaust System*:
Replaces Exhaust from the Downpipe Back Deleting DPF, DEF & CAT Systems
Highest Quality 4" Mandrel Bent Aluminized or 409 Stainless Steel
Optional Aluminized 12" x 8" or Stainless 30" x 6" Heat Resist Packed, Perforated Core Muffler
Optional 4" x 6" x 15" Polished Stainless Steel Tip
Simple & Secure Installation Using OEM Mounts/Hangers & Premium Hardware
Freedom Racing EGR Delete Kit:*
Completely Deletes EGR Coolers & Valve
Stainless Steel and Billet Aluminum Construction
Reduced EGTs with Increased Low-end Power

2011 - 2015 Chevy Silverado HD 6.6L Duramax LML Diesel Pickup Trucks
2011 - 2015 GMC Sierra HD 6.6L Duramax LML Diesel Pickup Trucks
* The turbo direct pipe on some of the later 2015 models has a 3-bolt flange instead of a V-band clamp. These kits will only fit models equipped with V-band clamp.
* These Parts are NOT suitable for Chassis Cab trucks.
The AutoCal will arrive blank. GDP will gather your truck information, create the tuning and send you the files for download.

EFI Live Autocal Tuner with Custom Delete Tuning by GDP

Important: Once you receive your autocal, you will contact GDP Tuning with your truck information. They will create the tuning and send the files to be loaded into the EFI Live Autocal.

EFI Live tuning for the 2011 - 2016 Duramax LML is now available to meet your desired horsepower gains. Each AutoCal will come with 5 tunes. When you purchase a GDP Tuning AutoCal you will be ready to unleash the beast that is locked inside of your truck.

  • Custom Tuned: Unlike other tuners with cookie cutter tuning that may or may not match your modifications or needs, the EFI Live Autocal from GDP will be loaded with tuning suited to your exact truck. And if you make changes in the future the tuning can be updated to make sure your truck always runs it's best.
  • Driveable Power: The tuning from GDP includes a set of five tunes with up to an additional 230 HP designed for daily drivers and weekend racers. Whether you are towing heavy loads or want to save fuel on the highway, GDP has a tune for you.
  • Track Worthy Tools: EFI Live is one of the most popular tuning programs on the market and at the track. The simple interface allows you to retrieve engine data and clear Diagnostic Codes, saving you time and money at the mechanics.

aFe Premium DPF, DEF & CAT Delete Exhaust System

IMPORTANT: This Delete Exhaust is NOT suitable for Chassis Cab trucks. The turbo direct pipe on some of the later 2015 models has a 3-bolt flange instead of a V-band clamp. These kits will only fit models equipped with V-band clamp. Choose kits for 2015.5-2016 if you have a 3-bolt Flange.

aFe's Premium Delete Exhaust Systems replace the entire exhaust from the Downpipe Back with 4" straight pipe. They do not require welding or modification and install easily using OEM mounts and hanger locations. Exhausts from aFe are precision engineered and manufactured in Corona, CA using high quality steel and welds. Featuring smoother bends and premium hardware, these exhausts were built for the roughest of conditions and are designed to outlast and out-perform the competition.

  • Better Steel: Premium Quality, 4" Aluminized or 409 Stainless Steel Tubing
  • Superior Engineering: aFe uses precision engineering and mandrel bending to create smoother turns in their pipes resulting in greater flow than the competition.
  • Engine Boosting Benefits: Greater exhaust flow results in better HP and torque while reducing EGTs and eliminating "Regen" resulting in a truck that is both, more powerful and more efficient.
  • Simple, Secure and Leak-Free Installation: aFe's precise engineering and premium mounting hardware ensures that your exhaust installs easily using OEM mounts and hanger locations without cuts or welds. Once installed, it will stay in place.
  • Muffler Options: Optional free flowing, heat resist packed, perforated core 12"Aluminized or 30" Stainless mufflers are offered with their exhausts.
  • Tip Options: The stainless exhaust offers a 4" x 6" x 15" Bolt-on Polished Stainless Steel Tip.

Freedom Racing Parts EGR Delete Kit

Important: This EGR Delete Kit is NOT suitable for Chassis Cab trucks.

With proper tuning, deleting your EGR will extend the life of your engine, reduce maintenance costs and add some power. EGR Delete Kits from Freedom Racing are constructed of Stainless Steel and Machined Billet Aluminum at an incredibly affordable price. The kit allows for the removal of the EGR Coolers and blocking/deleting the EGR Valve.

  • Craftsmanship: Each kit from Freedom Racing is constructed from quality Billet Aluminum and Stainless Steel.
  • Multiple Benefits: Lower EGTs, Increased Low-End Power, Reduced "Black Smoke" Emissions
  • What's Included: 2 Block Plates including Passenger-side Up-pipe Block Plate, 2 Coolant Hoses and Hardware

2011 - 2016 6.6L Duramax LML
Switch Position Name Custom Race Tuning
2TOW+50 HP
* To achieve max power and prevent de-fueling, a Lift Pump is required when using Rampage tuning.

More Information
SKU GDP-R1116DGP-AFE-49-X4003-CG1114-EGRD-X
Brand GDP Tuning
Diesel Engine Duramax 6.6L LML 2011-2015
OEM Make GMC, Chevrolet
OEM Model Sierra/Denali 2500, Sierra/Denali 3500, Silverado 2500HD, Silverado 3500HD
Specific Year 2015, 2014, 2013, 2012, 2011

Coupon Codes are entered on the shopping cart before going to checkout. If you have issues using the coupons, please contact us.

Exclusive Freedom Diesel Performance Discounts

Save $45 On Any Order Over $699 w/ Coupon Code SAVE45QUICK


All of our packages include multiple related items at a special package discount. Our packages are designed to make your life easier, usually including all the parts you need to achieve a specific modification.

Price Matching Beating!

We want to make sure you get the best deal possible on your parts. We do our best to ensure we have the best prices in the industy, however, if you find an item cheaper, let us know and we will happily match or beat the price.

Discounts For Shops & Dealers

If you are an installation shop or dealer, give us a call or email for details on our dealer program. We are able to discount most items for shops.

Phone: 855-432-4733 9 AM - 6 PM EST Monday - Friday
Email: [email protected]

We Strive For Extremely Quick Shipping.

Whether you need a part to fix a downed truck, a performance part to get the edge on your competitors on race day, or just something to improve the look or functionality of your vehicle; freedom diesel performance you covered!

We understand the only reason you are purchasing a part, is because you really need it or really want it. We do everything in our power to ensure you get the purchased item as soon as possible.

*** Orders placed before 2 PM Est - Usually ship the same day. ***

Estimated Delivery Times:

- Tuners / Programmers by themselves - 2 to 3 Business Days

- Performance / Race Packages - 2 to 5 Business Days

- General Diesel Performance Parts - 2 to 5 Business Days 

- Lighting, Accessories, Etc - 2 to 7 Business Days 

(Alaska / Hawaii Add 3 Business Days)

Easy Return / Exchange Process

If for some reason, you order the incorrect product, or do not need the product prior to using it, we will accept it back as a return for refund or exchange up to 30 days from delivery. Must be in new, un-used condition with original packaging.

Due to credit card processing fees, shipping, and wear and tear to the packaging often occuring during shipping, returns may be subject to a 20% restocking fee.

If you need to setup a return or exchange, please contact us for an RMA#

Warranty Process

If the product you receive is damaged or defective, please contact us immediately for assistance. In most cases, we can send you a return label and fix the problem very quickly.