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

2019–2022 Chevy/GMC 3.0L Duramax LM2 (E46 ECM ONLY) EZ Lynk Tunes ONLY (NO DEVICE) 

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 auto agent 3 (sold separately) can unlock and tune the E46 ECM.

What’s Included 

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

• Custom tunes up to +150hp

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 support 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

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 packages (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.

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.

• Click HERE for step by step tuning instructions.

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 is e46 and it ends up being e66 and incorrect, we do not offer refunds or returns.
No returns due to buyer’s remorse.