This is an engine computer (ECU/ECM) cloning service for select GM Chevrolet, GMC, and Hummer vehicles equipped with E67-style engine control modules. We transfer all original data from your faulty ECU to a customer-supplied replacement unit, ensuring seamless operation with no additional programming required.

All vehicle-specific information—VIN, immobilizer/security data, and calibration data—is cloned so the replacement ECU is plug-and-play with your existing vehicle systems.

Customers must supply both the original ECU and a replacement ECU with matching part numbers and hardware numbers.

Supported Engines

• 5.3L

• 6.0L

• 7.0L

Applies to select GM Chevrolet, GMC, and Hummer vehicles using E67 ECMs

Service Details

• Complete cloning of original ECU data to replacement ECU

• Transfers:

  • VIN

  • Immobilizer / security data

  • Calibration and configuration data

• Replacement ECU will be plug-and-play

• No dealer programming required

• Next business day turnaround once received

Customer Requirements

• You must send both:

  • Your original ECU

  • A replacement ECU

• The replacement ECU must:

  • Have the same part number

  • Have the same hardware number

• The original ECU must have OBD communication for this service to be successful

Important Notes

• This service requires that your original ECU still communicates via OBD

• ECUs with no communication or severe internal damage may not be eligible

• Part number and hardware number must match exactly

• This is a cloning service only — no tuning or software modification is performed

How It Works

1. Confirm your ECU part number and hardware number

2. Purchase this service

3. Ship both the original and replacement ECUs to us

4. We clone the data and program the replacement ECU

5. The ECU is shipped back next business day, ready to install

Why Choose Us?

• Experienced GM ECU cloning specialists

• Reliable VIN and immobilizer data transfer

• Fast turnaround time

• Trusted by professional repair shops and vehicle owners

Frequently Asked Questions (FAQ)

Do I need dealer programming after installation?
No. Once cloned, the ECU is fully plug-and-play.

Can I use a used or junkyard ECU?
Yes, as long as the part number and hardware number match exactly.

What if my ECU does not communicate via OBD?
This service requires OBD communication. If your ECU does not communicate, contact us before ordering.

Will this fix tuning or performance issues?
No. This service strictly transfers original data and does not modify performance or tuning.

What if I’m not sure which E67 ECU I have?
Send us your ECU part number and hardware number, and we’ll verify compatibility.

Contact Us

Don’t see your vehicle listed or need help verifying ECU compatibility?
Send us a message with your vehicle details and ECU part number, and we’ll be happy to assist.