2019-2022 Chevy / GMC LM2 3.0L | EZ LYNK + BYO DPF DEF CAT EGR Delete Kit | E46 ECM ONLY

2019–2022 Chevy/GMC 3.0L Duramax LM2 (E46 ECM ONLY) Complete Delete Kit

Fitment (Read First)

• E46 ECM ONLY

• Will NOT work on E66 ECM

• You MUST confirm your ECM before ordering.
  

  
  Compatibility 

  This product is for 3.0L Duramax pickups only (1500 trucks).

  • SUV 3.0L applications are NOT supported. The 3.0L SUVs use the E66 ECM, which requires a different product option and is not currently available on EZ Lynk.

  • This product is NON-REFRESH / pre-refresh trucks ONLY (generally 2020–early 2022). 2022.5+ “Refresh” trucks use the E66 controller and are not supported with this option. 

  How to tell if your truck is a Refresh (2022.5+)

  • If your truck has the large, newer-style center radio display, it’s a Refresh (2022.5+) and uses the E66 ECM. 

  • For 2022 model-year trucks, another quick check: 12th VIN digit = 4 or lower = pre-refresh, 5 or higher = refresh. 

   

No ECM Shipping Needed

No need to send in your ECM. EZ Lynk can unlock and tune the E46 ECM.

What’s Included (Can also remove via menu buttons if not needed) 

• EZ Lynk Tuner

• 4-Week or Lifetime Access (choose your option)

• Tuning package options: choose the Sasquatch 2-Tune Pack or CCS 5 Custom Tunes with power levels from 45HP, 75HP, 90HP, 120HP, and 150HP.

• LM2 CANbus plugs

• 3.0L Duramax EGR Delete Kit 

• Cat & DPF Delete Pipe 

  • Uses the existing muffler

• S&B Cold Air Intake (Must be added via menu buttons)

  • Must be added via the menu/drop-down options or it is NOT included

Performance Overview

This complete LM2 package is designed to improve drivability and response while supporting a cleaner, freer-flowing exhaust path once restrictive emissions components are removed. Expect:

• Stronger throttle response and acceleration

• Noticeable power gains (up to +150hp)

• Reduced exhaust restriction for smoother flow and reduced backpressure

Results vary based on truck condition, supporting mods, fuel quality, load, and driving habits.

4-Week Access (Limited-Term)
Best for customers who want to flash their tunes and get on the road without needing long-term changes.

• Includes tune file access and support for 4 weeks from activation/linking
• During that period, you can usually flash or reflash the truck and switch power levels if included
• Once the 4 weeks ends, the truck will normally keep whatever tune is currently installed, but access to reflash, switch files, or make further changes may end unless you renew or upgrade

Lifetime Access (Unlimited-Term)
Best for customers who want long-term flexibility and ongoing access.

• Includes continued access to your EZ LYNK tune file library with no limited access window
• Good option if you want long-term access without worrying about it expiring
• Lets you reflash or switch files down the road whenever needed

3.0L Duramax EGR Delete Kit (Included)

Kit Includes:

• High-quality 4-ply silicone coolant hose (1x) and caps (2x)

• Ground cable (1x)

• Blocker plates for the EGR valve and cooler (2x)

• Intake plug (1x)

This kit allows removal of the EGR cooler and valve, exhaust valve, and EGR cooler pipe.

Key benefits:

• EGR cooler & valve removal: helps improve airflow and reduces carbon buildup for cleaner operation

• Exhaust valve elimination: removes a common carbon buildup/failure point over time

• EGR cooler pipe blockage: prevents unwanted recirculation of hot exhaust gases

Professional installation is strongly recommended, as essential engine bay components must be removed to extract the OEM system.

Custom 3.0L Duramax Cat & DPF Delete Pipe (Included)

A precision-fit delete pipe system built for improved exhaust flow, reduced restriction, and a deeper tone—while retaining the factory muffler.

• Fabricated from durable 16-gauge stainless steel

• Machined flanges for proper fitment

• Lap-joint style clamps

• Helps support lower EGTs and improved airflow

• Uses the existing muffler

Professional installation is strongly recommended, as essential engine bay components must be removed for OEM system extraction.

Important Notes

• E46 ECM required — this kit will not work on E66 trucks.

• Confirm your ECM before ordering — incorrect ECM orders are not eligible for refunds/returns. 

Off-Road / Competition Use Notice

This product is intended for off-road/competition use only on vehicles not operated on public roads. The customer is responsible for complying with all applicable federal, provincial/state, and local laws and regulations.

ATTENTION / No-Return Policy (ECM Confirmation Required)

If you order without confirming your ECM and it ends up being incorrect, we do not offer refunds or returns. No returns due to buyer’s remorse.